Her birthplace is Didsbury, which lies in Manchester, England.
She first came into acting when she was only six years old and was scouted for a BBC TV series.
Holliday Grainger portrayed the character Sophia in the episode The Gates of Avalon of the BBC series Merlin.
Grainger attended Parrs Wood Technology College where in August 2006, in her A Levels, she scored two A's (in Biology & English Language), and scored two B's (in English Literature & General Studies).
Since then she has appeared in many TV shows and movies as a child actor.
In saga: a moral man who gives in to the slow seduction of power and politics, all in the name of family loyalty. No — it's my first big mainstream American project.
Barely 25, Holliday has already become one of the popular faces of her country. Born and brought up from Manchester, England she was one ambitious kid.
From an early age on, she knew exactly what she wanted to become.
TORONTO, ON - SEPTEMBER 15: Actor Francois Arnaud poses at the ' J'ai Tue Ma Mere' premiere at the Isabel Bader Theatre during the 2009 Toronto International Film Festival on September 15, 2009 in Toronto, Canada.
(Photo by Vito Amati/Wire Image) , created by director Neil Jordan, makes its characters deeply conflicted — and very sexy.