Greg Tiernan

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Greg Tiernan
Gregory Tiernan

(1965-06-19) June 19, 1965 (age 56)
Dublin, Ireland
OccupationVoice artist, animator, director, storyboard artist
Years active1986–present
Spouse(s)Nicole Stinn

Gregory Tiernan (born June 19, 1965) is an Irish-born, Canadian-based animator, director and voice artist. Along with his wife Nicole Stinn, he founded Nitrogen Studios Canada, Inc. in 2003, through which he introduced CGI to the Thomas & Friends series.[1] Prior to this, Tiernan collaborated on various projects with filmmaker Don Bluth, Walt Disney Animation Studios and Klasky Csupo, Inc.

Tiernan made his feature film debut with the long-gestating R-rated animated film Sausage Party (2016), joining Conrad Vernon to direct production of a story conceived by Seth Rogen, Evan Goldberg and Jonah Hill.[2][3]


Tiernan was trained in traditional animation for feature film in his native Ireland, at Don Bluth's now-defunct Dublin-based Sullivan Bluth Studios. There, he worked with Bluth in various capacities on the films An American Tail (1986), The Land Before Time (1988) and All Dogs Go to Heaven (1989). Tiernan later worked on one episode of the British children's animated series Danger Mouse for Cosgrove Hall, several episodes of Garfield & Friends, the 1983 animated series of the comic series Lucky Luke, Ralph Bakshi's live action and animation mixed feature film Cool World (1992) and two animated feature films from Germany Der kleene Punker (1992) and Felidae (1994) which was later released on YouTube premieres on 7 August 2013 in the USA, UK, Canada and any of countries lot of views in audiences for older teens and up. Soon after, he moved to Los Angeles and became a sequence director for Klasky Csupo. In addition to working on several episodes of Rugrats and The Wild Thornberrys, he made sequence contributions to the feature film spin-offs of both programs.

Tiernan's Hollywood years also saw him work extensively with Disney. His first projects included several titles in the company's PC games library, including projects associated with Disney's Aladdin (1992), The Lion King (1994), Hercules (1997) and Tarzan (1999). Also through Disney, he contributed storyboards to Mr. Magoo (1997), one of his few live-action projects.

After serving as an additional animator on The Tigger Movie (2000), Tiernan moved to Vancouver and founded Nitrogen Studios. Through this new venture, he helped develop God of War (2005), the first entry in the renowned PlayStation game series and the animated film Happily N'Ever After (2006). He joined the family of artists behind the Thomas & Friends franchise when he directed the home video feature Hero of the Rails (2009). This title became the first Thomas project to shelve the historical live-action animation technique in favor of CGI; all subsequent projects have been animated thus. Along with helming various additional home videos, Tiernan served as series director for Thomas & Friends from Series 13 to Series 16 and the other three films Misty Island Rescue (2010), Day of the Diesels (2011) and Blue Mountain Mystery (2012). Tiernan was also the CGI unit director for Series 12. He was also a huge fan of The Rev. W. Awdry's original Railway Series books and owns both The Island of Sodor: Its People, History and Railways and Sodor: Reading Between the Lines.

Tiernan also worked on several film projects when not working at Disney or Nitrogen or with Don Bluth, including VeggieTales, Roxy Hunter, Bionicle 2: Legends of Metru Nui and four Peanuts specials.

Tiernan gained new acclaim following the 2016 release of his feature film debut, Sausage Party (in which he also voiced a potato and a noodle soup can).

Allegations of mistreatment[edit]

Several days after the release of Sausage Party, allegations of poor treatment of Nitrogen Studios employees surfaced in the comments section of an interview with Tiernan and co-director Conrad Vernon, featured on the website Cartoon Brew.[4] Various anonymous comments, from individuals purporting to be animators who worked on the film in question, made claims including that Nitrogen forced them to work overtime for free and that some employees were threatened with termination. One individual stated that Tiernan had developed a reputation for "disturbing behaviour and abusive management style".[5] Publications such as the Washington Post,[6] the Los Angeles Times,[7] Dorkly[8] and /Film[9] later picked up the story.


  1. ^ Greg Tiernan at Sodor Island Fansite
  2. ^ Murphy, Mekado (4 August 2016). "Seth Rogen and Evan Goldberg on 'Sausage Party,' Their R-Rated Animated Film". The New York Times. Retrieved August 6, 2016.
  3. ^ Interview with Directors Conrad Vernon and Greg Tiernan of Sausage Party
  4. ^ Sausage Party's Animators Were Treated Like Shit
  5. ^ 'Sausage Party' Directors Conrad Vernon & Greg Tiernan On Making 2016’s Most Outlandish Animated Film
  6. ^ The working conditions for some ‘Sausage Party’ animators were pretty terrible
  7. ^ 'Sausage Party' anything but a good time at work, some animators say
  8. ^ Sausage Party's Animators Were Allegedly Treated Like Shit
  9. ^ 'Sausage Party' Allegedly Forced Animators to Work Overtime for Free, Refused to Credit Artists

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