||This biographical article needs additional citations for verification. (April 2013)|
Leonidas at the 2012 San Diego Comic-Con International.
14 February 1984
London, England, UK
Leonidas was born in London, England to a Greek Cypriot father and a British mother with both English and Welsh ancestry. Her younger brother Shane (who is now known as Dimitri) and younger sister Georgina Leonidas are also actors, while her other sister Helena is a teacher.
Leonidas started acting in community theatre when she was eight; at nine she acquired an agent and began to work in television.
Notable credits include the television drama Daddy's Girl, the soap opera Night and Day and a 2004 episode of Doc Martin in which she plays Melanie, a local Portwenn 15-year-old girl who develops an unhealthy fascination with the surgeon. In 2005 she starred in Neil Gaiman and Dave McKean's MirrorMask in the dual roles of Helena and the Dark Princess, and followed this with roles in a BBC adaptation of Dracula, as well as Crusade in Jeans. Her theatrical roles have included Adela in a production of Lorca's The House of Bernarda Alba at Coventry's Belgrade Theatre, and Dani in The Sugar Syndrome, staged at the Royal Court Theatre Upstairs, London, in 2003. In this latter production, reviewer Lizzie Loveridge said she gave a performance "way beyond her years".
She has also starred in the BBC made for TV film Atlantis, which aired on BBC one and BBC one HD on 8 May 2011. In 2011, she was in a play for the Transatlantyk Festival called "Influence", written by Shem Bitterman. More recently, Leonidas has once again teamed up with Dave McKean to work on a new film entitled Luna, expected to be released sometime in 2013. Currently, Stephanie stars as Irisa Nyira in the new science fiction show Defiance. 
|2002||Fogbound||Annette at 16||Uncredited|
|Daddy's Girl||Emma Cooper||TV film|
|2003||Danielle Cable: Eyewitness||Kerri||TV film|
|2004||Wall of Silence||Tracy Broughton||TV film|
|2005||MirrorMask||Helena Campbell / The Dark Princess (Anti-Helena)|
|Beneath the Skin||Zoe Haratounian||TV film|
|Feast of the Goat||Uranita|
|2006||Crusade in Jeans||Jenne|
|Dracula||Mina Murray||TV film|
|2007||Ordeal by Innocence||Hester Argyle||TV film|
|Atlantis: End of a World, Birth of a Legend||Pinaruti||TV film|
|How to Stop Being a Loser||Patch|
|1997||Chalk||Rabbit Girl 2||Episode: "Exam"|
|2000||Down to Earth||Chrissie||Episode: "O Best Beloved"|
|2001||Holby City||Sarah Newman||Episode: "Runaway"|
|Night and Day||Della Wells||Main cast|
|2003||The Bill||Kirsty Sullivan||Episode: "125"|
|2004||Rose and Maloney||Katie Phelan||Episode: "1.2"|
|Doc Martin||Melanie Gibson||Episode: "Of All the Harbours in All the Towns"|
|2005||Revelations||Athena||Episode: "Hour Two"|
|Empire||Girlfriend Olivia||TV miniseries|
|2006||Brief Encounters||Jay||Episode: "One Night in White Satin"|
|2012||Eternal Law||Jude||Episode: "Episode Three"
Episode: "Episode Four"
|Whitechapel||Georgie Fox||Episode: "Case One (Part 1)"
Episode: "Case One (Part 2)"
|2013||The Bible||Rahab||Episode: "Homeland"|
|Defiance||Irisa Nyira||Main cast|
|Agatha Christie's Poirot||Hattie Stubs||Episode: "Dead Man's Folly"|
|By Any Means||Coleen Parker||Episode #1.2|
|2013||Defiance||Irisa Nyira (Voice role)|
- The Sugar Syndrome … as Dani (2003)
- The House of Bernarda Alba … as Adela (2010)
- Influence … as Sally (2012)
- "Birth Registration Details" Ancestry.co.uk
- Epstein, Daniel Robert (2005). "Stephanie Leonidas of MirrorMask". Ugo.com, 2005. Retrieved from http://www.ugo.com/channels/filmTv/features/mirrormask/interview-2.asp.
- Loveridge, Lizzie (2003-10-20). "The Sugar Syndrome". Curtainup.com, 20 October 2003. Retrieved from http://www.curtainup.com/sugarsyndrome.html.
|Wikimedia Commons has media related to Stephanie Leonidas.|
- Stephanie Leonidas at the Internet Movie Database
- Stephanie Leonidas on Twitter
- Stephanie Leonidas Interview at www.sci-fi-online.com