List of Famous people born in Ontario, Canada

Andrew Michael Edgar Seeley, also known as Drew Seeley, is a Canadian-American actor, singer and dancer. He has recorded many songs for the Walt Disney Company. He danced as a child in Ontario until he was about preteen age and then moved to Florida.

Katie Griffin is a Canadian actress, voice actress and singer. She has had roles in several television movies and feature films. In cartoons, her best-known roles include the voices of Sailor Mars in the original English Canadian dub of Sailor Moon, and Alex in Totally Spies!. She is also the voice of Laugh-a-Lot Bear in Care Bears: Journey to Joke-a-lot and as a plush toy. She also voiced Farmer Shire in Corn & Peg

Hart Matthew Bochner is a Canadian actor, film director, screenwriter and producer. He has appeared in films such as Breaking Away (1979), Rich and Famous (1981), The Wild Life (1984), Making Mr. Right (1987), Die Hard (1988), Apartment Zero (1988), Mr. Destiny (1990) Mad at the Moon (1992), Break Up (1998), Liberty Stands Still (2002), Spread (2009), and Carrie (2013). On television, he has starred in War and Remembrance (1988–89), Children of the Dust (1995), Baby for Sale (2004), The Starter Wife (2008), and Scandal (2015).

Lucas Bryant is a Canadian-American actor. Bryant is most well known for his role as Nathan Wuornos in the Syfy TV channel series Haven (2010–2015).

Charlotte Sullivan is a Canadian actress.

Aden Young is a Canadian-Australian actor. He is best known for his portrayal of Daniel Holden in the SundanceTV drama Rectify, for which he was twice nominated for the Critics' Choice Television Award for Best Actor in a Drama Series.

John Colicos was a Canadian actor. He performed on stage and television in the United States and Canada.

Sheila McCarthy is a Canadian actress and singer. She has worked in film, television, and on stage. McCarthy is one of Canada's most honoured actors, having won two Genie Awards (film), two Gemini Awards (television), an ACTRA Award, and two Dora Awards (theatre), along with multiple nominations.

Katherine Emily "Kate" Hewlett is a Canadian film, television and stage actress and producer.

David Bourne, known professionally as JR Bourne, is a Canadian actor. He portrayed Chris Argent on all six seasons of the series Teen Wolf (2011–2017) and was part of the main cast in the final season. Bourne has also appeared as a series regular on Somewhere Between (2017) and The 100 (2019–2020). Other notable television roles include Martouf / Lantash on Stargate SG-1 (1998–2000), CIA Agent Edwards on Fringe (2009–2011), and Kenny Ryan on Revenge (2012–2013).