Jack Blum is a Canadian writer, producer, director, story editor, actor, educator and communications consultant based in Toronto, Ontario, Canada.

His early acting career included the role of "Spaz" in the comedy hit Meatballs, as well as appearances in dozens of other feature films and television shows.

In the theatre, he directed productions across Canada (including several world premieres) and was associate artistic director at the La Jolla Playhouse in California.

He has written many articles about the film industry for periodicals (Take one, Montague, POV), taught courses in screenwriting, and been an advocate for Canadian cinema and culture.

In addition to episodes of the series Sons and Daughters and The Edison Twins, he co-wrote and was Associate Producer on the television movie Hockey Night, starring Megan Follows and Rick Moranis, for the Canadian Broadcasting Corporation, and the award-winning short drama The Umpire for the National Film Board of Canada.