Stephanie Leonidas

Actress

Play trailer2:02

Marching Powder (2025)

Stephanie Leonidas is an English actress. She is perhaps best known for her roles as Helena in the fantasy film MirrorMask and as Irisa on the American science fiction television series, Defiance. Leonidas was born in Westminster, London.

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Awards
- 1 win total

Photos65

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Known for

Mirrormask

6.7

Helena
Anti-Helena

2005

American Gothic

6.7

TV Series

Sophie Hawthorne

Defiance

6.3

Video Game

Irisa(voice)

2013

Killjoys

7.2

TV Series

Clara
Clara - Alice

Credits

IMDbPro

Actress

Marching Powder
5.3
- Dani Jones
- 2025
5lbs of Pressure
5.3
- Donna
- 2024
In-Between
Short
- Sarah
- 2024
A Very Venice Romance
6.2
TV Movie
- Amy Bellefarr
- 2023
Feel Good
7.5
TV Series
- Binky
- 2021
Endeavour
8.6
TV Series
- Violetta Talenti
- 2020
Van der Valk
7.1
TV Series
- Eva Meisner
- 2020
Tomorrow
6.1
- Katie
- 2018
Snatch
6.9
TV Series
- Chloe
- 2017
American Gothic
6.7
TV Series
- Sophie Hawthorne
- 2016
Killjoys
7.2
TV Series
- Clara
- Clara - Alice
- 2016
In Vitro
8.3
Short
- Girlfriend
- 2015
Meet Pursuit Delange: The Movie
7.2
- Carmen Mead
- 2015
Defiance
7.0
TV Series
- Irisa
- Irisa Nolan
- 2013–2015
Killing Jesus
4.7
TV Movie
- Salome
- 2015

In-development projects at IMDbPro

Videos21

Personal details

Official sites
- Instagram
- X
Alternative name
- Stephanie Leonides
Height
- 5′ 3″ (1.60 m)
Born
- February 14, 1984
- London, England, UK
Spouse
- Robert BoulterDecember 31, 2016 - present (1 child)
Parents
Relatives
Other works
Lead role as Dani in Lucy Prebble's play "The Sugar Syndrome" at Royal Court Theatre (2003).

Did you know

Trivia
Her father is of Greek Cypriot descent and her mother has Welsh and English ancestry.

Quotes
The sets on 'Defiance' are incredible. I've never really seen a set like this, where the world is so built around us. There's not too much left for us to have to imagine.