She is the founding director of Obsidian Theatre, a company that specializes in Black Canadian drama. Sealy-Smith was awarded a Dora Mavor Moore Award for her 1997 star turn in Djanet Sears’ Harlem Duet.
Her film and television credits have included the series “Street Legal”, “This is Wonderland” and “The Line”, and a recurring role in “Kevin Hill”. She also had a small role in the 1998 film My Date with the President’s Daughter.
Sealy-Smith also voiced characters in various animated series such as Storm on the 1990s “X-Men: The Animated Series” and Scarlett on the Teletoon series “Delilah and Julius”. She played Sergeant Rose in the film Confessions of a Teenage Drama Queen, as well as roles in Honey, Dark Water, and Talk to Me. Since the mid-2000s, she had a recurring role as Ms. Mann in the children’s series “Naturally, Sadie”. In 2009, she performed as Nurse Lydia in the HBO Canada series “Bloodletting & Miraculous Cures”.
Sealy-Smith won a Dora Mavor Moore Award in 1997 for Best Female Performance for her role in Harlem Duet. She also won a Dora Mavor Moore Award in 2009 for Outstanding Performance By A Female In A Principal Role with her role as Lena in A Raisin In The Sun.