Dennis & Gnasher: Unleashed!

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Dennis & Gnasher: Unleashed!
Dennis and Gnasher Unleashed title card.png
Based onDennis the Menace
from The Beano comics
created by David Law
Written byVarious
Directed byBoris Hiestand
Theme music composerThe Vaccines[1]
Composer(s)Rob Lord
Graham Kearns
Country of originUnited Kingdom
Original language(s)English
No. of series1
No. of episodes52 (list of episodes)
Executive producer(s)Michael Elson
Jo Allen
Producer(s)Karina Stanford-Smith
Running time11 minutes
Production company(s)Beano Studios
CBBC Production
DistributorJetpack Distribution
Original networkCBBC
Picture format16:9 1080i
Audio formatStereo
Original release6 November 2017 –
Preceded byDennis and Gnasher (1996-98)
Dennis the Menace and Gnasher (2009-13)

Dennis & Gnasher: Unleashed! is a British computer-animated television series based on the Dennis the Menace strip from the British comic The Beano created by David Law. The strip first launched in 1951. It began on CBBC on 6 November 2017 and is the third animated adaption of the strip after Dennis and Gnasher and Dennis the Menace and Gnasher. The series stars Freddie Fox as Dennis.[2] A second series has been confirmed.[3]


The series follows 10-year-old Dennis the Menace and his dog Gnasher as he teams up with his friends Pieface, JJ and Rubi to cause havoc to Walter and Beanotown and Bash Street School, in a world full of action packed adventure where rules just get in the way.

Each episode also includes a short 2D section featuring Gnasher's fleas telling jokes.


  • Dennis (voiced by Freddie Fox in the UK dub, Bryce Papenbrook in the US dub):
  • Gnasher (voiced by Boris Hiestand): Dennis' pet dog, an Abyssinian Wire-Haired Tripe Hound.
  • Peter "Pieface" Shepherd (voiced by Ryan Sampson): A boy who loves pies. He has a pet potato called Paul.
  • Jemima "JJ" Jones (voiced by Dorothy Elias-Fahn)[4] in the US dub:
  • Rubidium "Rubi" von Screwtop (voiced by Kelly-Marie Stewart): Daughter of Professor von Screwtop. She is ingenious and makes inventions.
  • Mrs. Creecher (voiced by Joanna Ruiz): The teacher of Dennis' class.
  • Walter Brown (voiced by Rasmus Hardiker): Originally a Softy, Walter now is cunning and ambitious, and wants to spoil Dennis' plans and is the main antagonist of the series.
  • Wilbur Brown: The mayor of Beanotown.


  • Freddie Fox as Dennis the titular character and a master of trouble.
  • Boris Hiestand as Gnasher
  • Rasmus Hardiker as Walter Brown, Dennis' arch-enemy and Grizzly Griller, an explorer who is a Bear Grylls parody.
  • Ryan Sampson as Peter "Pieface" Shepherd. One of Dennis' best friends and with a rather odd personality and has a pet potato, Paul.
  • Kathryn Drysdale as Jemima "JJ" Jones. The most fearless of Dennis' friends who always tells Dennis stories that her older brothers have told her, even though they may not be true.[5]
  • Kelly-Marie Stewart as Rubidium "Rubi" von Screwtop. The smartest of Dennis' friends and uses a wheelchair, as does her voice actress. She is very good at making plans. Her father is the scientist Professor von Screwtop, who first appeared in the Lord Snooty strip in the 1940s.[6]
  • Joanna Ruiz as Mrs Creecher, Gran and Anne Finally - a journalist whose name is a play on the words "And finally...".


The series was first announced on 8 June 2016, when The Beano announced they were setting up a business dedicated to media based on The Beano. Dennis & Gnasher: Unleashed! will be their first production.[7] On 5 October 2016, it was officially announced that the series would air on CBBC in 2017 and the first ever picture of Dennis in CGI was released.[8] On 17 March 2017, Freddie Fox was announced to be voicing Dennis, a clip of the series was also released.[9] On 3 July 2017, Rasmus Hardiker, Ryan Sampson, Kathryn Drysdale, Kelly-Marie Stewart and Joanna Ruiz were all added to the voice cast and another clip was released.[10][11]

The music for the series was composed by Rob Lord and Graham Kearns and the theme tune performed by The Vaccines.[1]


No. in
No. in
Title Director Writer(s) Original air date
11"Edubot 4000"Boris HiestandJen Upton6 November 2017 (2017-11-06)
Walter is tired of Dennis pulling the wool over the eyes of their teacher Mrs Creecher, so he gets his father, owner of a major company and mayor of Beanotown, to construct a robot to replace Creecher named Edubot 4000. To Dennis's dismay, the robot stops all his pranks and even perfectly catches a pea from Dennis's incredibly accurate pea shooter. When Walter too is put in detention Dennis forces Walter to give them the files from his father's company for the Edubot. Back in the den, Rubi remarks that the robot is incredibly amazing and is ahead of its time while examining the blueprints and finds an access port where they could install a virus; the only problem being that it is where on a human the bottom would be positioned. Rubi creates a virus and they create a ruckus in the corridors back at the school where Dennis fires the USB stick into the port and the robot goes haywire before exploding. Triumphantly, they return the next day to find Creecher once again their teacher.
22"Dare Dennis"Boris HiestandTony Cooke7 November 2017 (2017-11-07)
Anne Finally, Beanotown's news reporter is in Beanotown Park where she is talking about whether or not skateboarders on the walkways is dangerous, right before Dennis comes crashing through and is captured on camera doing an amazing accidental trick and lands in a bush. Dennis goes to the Den completely embarrassed and hoping that it was not shown on the news. To his dismay, they are watching the video on YouTube over and over before Paul's (Pieface's pet potato's) birthday. Realising that people love the trick, his fame goes to his head and neglects his friends as he continues to show off and forgetting Paul's party. But, Walter uploads a video of his cat Claudius playing piano. Walter sells the rights to make a Claudius musical and Dennis seeks to reclaim his fame. Dennis accidentally sends Gnasher caveering in a shopping trolley and ruins the poster for Claudius the Musical. Dennis gives up fame and Gnasher becomes the star, and Dennis apologises to his friends.
33"Dinmaker Diva"Boris HiestandDenise Cassar8 November 2017 (2017-11-08)
Dennis and the gang are fed up with dinner lady Olive's completely inedible school dinners. In their mission to 'drop the slop', they discover a poster of her past career as a singer. The gang ask her to join The Dinmakers - hoping she'll swap a life in the kitchen for fame. However, after unleashing Olive's inner diva, their new mission is how to get Olive back into the kitchen!
44"Raiders of the Lost Sweetie"Boris HiestandJen Upton9 November 2017 (2017-11-09)
Mrs Creecher confiscates Dennis' rare sour sweetie - The Tongue Destroyer. Dennis is desperate to get the sweet back and takes his friends on an adventure to the school's 'Confiscatorium', a secret place where all confiscated goods are hidden in the depths of Bash Street School.
55"Escape from Azkabash"Boris HiestandMatt Baker10 November 2017 (2017-11-10)
Dennis must escape detention and Bash Street School to make the Beanotown Brawny Bean Race before Walter wins it. With the help of a note placed in his desk, he must sneak past Mrs Creecher and make a run for it - unless the mysterious note giver stops him first.
66"Griller Thriller"Boris HiestandCiaran Murtagh & Andrew Jones13 November 2017 (2017-11-13)
Dennis' ultimate hero, Grizzly Griller, plans on trekking to the source of the River Beano, broadcasting the treacherous path on live TV. Dennis introduces him to his pet hamster, Galahad - only to discover they are his biggest fear! Grizzly is so afraid that Dennis must disguise himself as his hero and go in his place!
77"Pie Spy"Boris HiestandMatt Baker14 November 2017 (2017-11-14)
Pieface steals Professor Von Screwtop's Pastry-based Intelligent Espionage unit (PIE) after forming a strong bond with the pie-shaped robot. Pieface is dismayed when Walter steals it from him to protect his dad from the embarrassing footage the PIE's memory chip holds.
88"Night of the Living Veg"Boris HiestandCiaran Murtagh & Andrew Jones15 November 2017 (2017-11-15)
Mrs Creecher uses the school's allotment to hold Class 3C's 'Biggest Veg' competition before the vegetables start to come alive.
99"The Hamazing Hamsterman"Boris HiestandJen Upton16 November 2017 (2017-11-16)
Dennis gets into a fluffy mess when he runs into Professor Von Screwtop's hadron collider with the professor's pet hamster, Galahad. To stop Dennis from completely changing into a hamster, the gang must sneak him into Wilbur's lab to use his reverse hadron collider and change him back!
1010"Prank Wars"Boris HiestandTony Cooke17 November 2017 (2017-11-17)
Dennis discovers that Ralf the janitor is the legendary Prankmaster General and is told he could become his successor. Walter won't let this happen and challenges him to a prank battle to win Ralf's book of pranking - the infamous Prankypedia.
1111"Give Peas a Chance"Boris HiestandDenise Cassar20 November 2017 (2017-11-20)
Mayor Wilbur passes a law to increase the healthy eating in Beanotown, replacing all foods with peas... of the mushy variety! The gang must avoid the people of Beanotown who are rapidly turning into Zompeas after eating the green mush. Dennis uses the only ordinary peas in town to sabotage Wilbur's mush making factory and save the day!
1212"The Fan"Boris HiestandMatt Baker21 November 2017 (2017-11-21)
Walter attempts to ruin The Dinmakers' chance of reaching fame. He will stop at nothing - even wearing a frock, and pretending to be a fan called Wanda who loves Dennis in order to break up the band!
1313"Screwtop Spudswap"Boris HiestandChris Chantler & Howard Read22 November 2017 (2017-11-22)
Dennis is desperate to prevent Pieface from failing Mrs Creecher's maths test! He persuades the gang to use Professor Von Screwtop's mind-swapping device. But in a disastrous turn of events, Screwtop is on the loose with the brain of Paul the potato and Pieface is left with a potato with the brain of Screwtop to help get him through the test!
1414"Are We There Yeti"Boris HiestandJen Upton23 November 2017 (2017-11-23)
The gang go on an adventure in search of the Beanotown Yeti.
1515"Super Paul"Boris HiestandCiaran Murtagh & Andrew Jones24 November 2017 (2017-11-24)
Dennis persuades Pieface that Paul is an undercover superhero.
1616"Wonder Sausage"Boris HiestandMatt Baker5 February 2018 (2018-02-05)
After discovering that the Wonder Sausage, the most amazing sausage in the world, has strange hypnotic effects on Gnasher, Walter uses it to turn Gnasher against Dennis and the gang.
1717"Jurassic Bark"Boris HiestandLaura Beaumont & Paul Larson6 February 2018 (2018-02-06)
Gnasher digs up a Gnashersaurus Rex thighbone in the park.
1818"Screwtop In Love"Boris HiestandAndrew Emerson & Jen Upton7 February 2018 (2018-02-07)
The gang try to find Professor Screwtop a girlfriend.
1919"The Great Beanotown Bake-Off"Boris HiestandJen Upton8 February 2018 (2018-02-08)
Pieface wants to make the best pie ever to win the annual bake-off.
2020"Why So Clonely"Boris HiestandMatt Baker12 February 2018 (2018-02-12)
Dennis accidentally clones himself and uses his new clone to do all his chores.
2121"The Wrong Man-ace"Boris HiestandJen Upton13 February 2018 (2018-02-13)
Dennis is mistaken for a Beanotown baddie while in disguise to sneak into a 12A film.
2222"Red And Black To The Future"Boris HiestandHoward Read14 February 2018 (2018-02-14)
When Dennis finds Professor Screwtop's time machine in the lab, he can't resist using it.
2323"Pig Trouble In Little Beanotown"Boris HiestandChris Chantler & Howard Read16 February 2018 (2018-02-16)
Dennis takes Rasher the pig to school disguised as an exchange student.
2424"I, Clawdia"Boris HiestandChris Chantler & Howard Read19 February 2018 (2018-02-19)
When the gang's sausages go missing, Gnasher realises he's being set up by Clawdia.
2525"Postcards From The Veg"Boris HiestandDenise Cassar20 February 2018 (2018-02-20)
Pieface thinks Paul has gone on Holiday, or are the gang playing tricks?
2626"The Whole Tooth"Boris HiestandJames Walsh21 February 2018 (2018-02-21)
When Gnasher gnashes Walter's portrait, Walter takes revenge with a titanium sausage.
2727"Freewheelin'"Boris HiestandCiaran Murtagh & Andrew Jones21 May 2018 (2018-05-21)
It's the famous Beanotown Freewheeler Derby! During practice, the gang realize Walter's go-cart is especially speedy. Worried that Walter will beat his record, Dennis creates a lighter, faster cart but loses control and injures himself. It is up to Rubi's wheelchair know how and Dennis' super-speedy carting skills to win the race
2828"Were-walter"Boris HiestandAlex Collier22 May 2018 (2018-05-22)
There's a werewolf-type creature on the prowl and suspicion falls on Gnasher. Dennis has to prove his best pal's innocence as the full moon shines down on Beanotown...
2929"Dennis TV"Boris HiestandCiaran Murtagh & Andrew Jones23 May 2018 (2018-05-23)
Walter launches his own mega-dull, hypnotic TV channel with a signal booster that swamps all other channels! Rubi helps Dennis set up his own TV channel with a more powerful booster to free the residents of Beanotown from Walter's TV trance. Who will win the battle for ratings?
3030"The Dog Ate It Miss"Boris HiestandChris Chantler & Howard Read24 May 2018 (2018-05-24)
Gnasher accidentally gulps down Dennis' permission slip for the school trip! There's only one thing for it - they need Prof von Screwtop to use his shrink ray to shrink them down to bite-size humans so they can travel on a sausage into Gnasher's tummy and find the slip! Easy! Well it would be if it wasn't for the tiny alien empress Miasma living in there.
3131"The Fangtom Menace"Boris HiestandAlex Collier25 May 2018 (2018-05-25)
Pieface's first sleepover in the den is troubled by spooky tales of a frightening Fangtom and Walter turning up with a demolition gang determined to flatten the den!
3232"Gnashernal Treasure"Boris HiestandChris Chantler & Howard Read28 May 2018 (2018-05-28)
The class dig up a mysterious time capsule which sets them off on a race to find hidden treasure before Walter or a greed-crazed Paul the Potato can find it first.
3333"Ralf's Last Prank"Boris HiestandDenise Cassar29 May 2018 (2018-05-29)
When Dennis and the gang think they have caused Ralf to lose his job, they're determined to make his last day at Bash Street School totally blam by setting up the greatest prank Ralf's ever known
3434"Extreme Sports Day"Boris HiestandMatt Baker30 May 2018 (2018-05-30)
Dennis recruits Grizzly Griller to help make school sports day more extreme, but as he and JJ get competitive against each other, who is sabotaging both their chances of winning?
3535"Today The Dog, Tomorrow The World"Boris HiestandChris Chantler & Howard Read31 May 2018 (2018-05-31)
Power-hungry tiny alien Empress Miasma takes control of Gnasher from the inside and uses him in her attempts to take over planet Earth. But when Miasma breaks out of Gnasher into Beanotown for real and Walter helps her grow in size, mayhem really takes hold!
3636"School Of Croc"Boris HiestandAndrew Emerson1 June 2018 (2018-06-01)
When Walter leaves his pampered pet croc, Crunchzilla, to fend for itself, Dennis and the gang help him to get in touch with its wild side. Walter does his best to prevent them, as he needs to keep the croc tame in the hope of getting back his father's limo keys, which Crunchzilla has accidentally swallowed.
3737"Grizzly's Great Outdoors"Boris HiestandAlex Collier4 June 2018 (2018-06-04)
A snake bite causes Grizzly Griller to forget all his survival know-how, so it's down to his greatest fan Dennis to help him re-learn his survival skills and help them all make it safely back to Beanotown.
3838"Bertie's Backbone"Boris HiestandAndrew Emerson5 June 2018 (2018-06-05)
Dennis and the gang train Bertie in the art of standing up to people so he can rebel against Walter's bossiness - but they train him too well and he becomes a dangerous rebel without a clue!
3939"Gnash Hit"Boris HiestandTim Bain9 July 2018 (2018-07-09)
Grizzly Griller finds his ultimate animal sidekick for an action-packed feature film - Gnasher!
4040"Heroes In A Halfpipe"Boris HiestandChris Chantler & Howard Read10 July 2018 (2018-07-10)
The residents of Beanotown get their skates on to stop Walter destroying the half-pipe! Can Dennis pull off the ultimate trick to save the skatepark?
4141"Gran Up"Boris HiestandTim Bain11 July 2018 (2018-07-11)
Dennis encounters the same OLD trouble with Walter - will Gran come to the rescue?
4242"Tech Specs"Boris HiestandAlex Collier12 July 2018 (2018-07-12)
When Walter's gold goes missing, it's up to Mrs Creecher and Sergeant Slipper to solve the case!
4343"Goodbye Rubi Doomsday"Boris HiestandChris Chantler & Howard Read13 July 2018 (2018-07-13)
Rubi suspects her invitation to Science Genius Summer Camp isn't what it seems when she finds her inventions being used for evil...
4444"Pie In The Sky"Boris HiestandAndrew Emerson16 July 2018 (2018-07-16)
Can Dennis and the gang help professor Screwtop to save Beanotown from its biggest threat - himself?!
4545"BMXcess"Boris HiestandCiaran Murtagh & Andrew Jones17 July 2018 (2018-07-17)
Professor Screwtop locks a secret gadget away in the lab - but when Walter tries to steal it, can the gang save the day?
4646"Pieface Day"Boris HiestandAlex Collier18 July 2018 (2018-07-18)
The whole town celebrates Pieface when they think he heroically saves Walter! But only Walter knows the real story...
4747"Crouching Dennis, Hidden Yeti"Boris HiestandDenise Cassar19 July 2018 (2018-07-19)
Dennis and the gang go on a quest to find the ultimate Beanotown Blam-jitsu master - the Beanotown yeti!
4848"Double Crust"Boris HiestandMatt Baker20 July 2018 (2018-07-20)
Professor Screwtop is full of so many great ideas that it’s a wonder no-one else has thought of them before. Or have they?
4949"Get Lost"Boris HiestandChris Chantler & Howard Read23 July 2018 (2018-07-23)
The gang get lost in the woods and stumble into the Land of Lost Things, where Gnasher gets dognapped by a Gnashersaurus Rex which has lost its beloved egg. To save Gnasher they have to rely on Pieface logic to reunite the G-Rex with its egg before Walter makes a record-breaking giant omelette with it.
5050"Call Of The Wild"Boris HiestandTim Bain24 July 2018 (2018-07-24)
When Gnasher gets sent to dog obedience school for gnashing Mrs Creecher's saxophone, one of Professor Screwtop's inventions, the Chatterbox, allows Dennis to understand animal noises, so he can ask Gnasher why he did it - if only all the other animals in Beanotown would stop chatting to him for a minute!
5151"Dennis and the Beanostalk"Boris HiestandTim Bain18 December 2018 (2018-12-18)
A massive Beanostalk sprouts up in Beanotown, taking all the gang’s Christmas stuff - and Gnasher - up beyond the clouds to a land of giants! Dennis and the Gang bravely climb up to Ginormotown, determined to find Gnasher and bring Christmas back home. On their journey they find themselves giving away all their christmas goodies, showing the Ginormotowners – and themselves what the spirit of Christmas is really about!


In its first week, it was the highest rated show on CBBC and overall the 10th most-watched programme for 6-12 year olds alongside The X Factor and Strictly Come Dancing.[12]


  1. ^ a b "BBC - Meet the characters - Media Centre".
  2. ^ "BBC - Brand-new Beanotown residents and all-star voice cast revealed for forthcoming CBBC show Dennis And Gnasher: Unleashed - Media Centre".
  3. ^
  4. ^ @DorothyFahn (15 May 2019). "Dennis and Gnasher Unleashed! Now on Netflix - I play JJ!!" (Tweet) – via Twitter.
  5. ^ "Beano Superstars - JJ -".
  6. ^ "Beano Superstars - Rubi -".
  7. ^ Sweney, Mark (8 June 2016). "Dennis the Menace to get CGI makeover as Beano targets YouTube generation" – via The Guardian.
  8. ^ "CBBC orders Dennis & Gnasher: Unleashed from Beano Studios - D.C. Thomson & Co. Ltd". 5 October 2016.
  9. ^ "Freddie Fox to voice CGI version of Beano's Dennis the Menace on CBBC".
  10. ^ Guide, British Comedy (3 July 2017). "Voice cast announced for new Dennis The Menace series".
  11. ^ Beano (3 July 2017). "Meet all the new characters from Dennis and Gnasher: Unleashed, coming soon to CBBC!".
  12. ^

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