[2] Repo-Martell grew up in Toronto and attended Jarvis Collegiate Institute in the mid-1980s.
She received a Gemini award was for her 1998 performance in Nights Below Station Street.
[3] She portrayed Mrs. Genest, the estranged wife of Joe Genest (Stephen Baldwin), in the 2006 made-for-TV-movie Jesse Stone: Night Passage.
[4] In February 2012, the National Post called Repo-Martell, and her husband; actor and theatre-director Chris Abraham, a "Toronto theatre power couple".
[5] Repo-Mertell portrayed Sir Reginald Hargreeves' wife Abigail in the Netflix series The Umbrella Academy (2019–2024).