Jeff Seymour is an American-Canadian actor, best known for his roles in Canadian television series such as Jeff Ltd., The Eleventh Hour, Show Me Yours, and Being Erica.

Born in Washington, D.C., and raised in Virginia. He began his career in the entertainment industry in 1979. He was seen in shows such as Knots Landing, Hill Street Blues, and Bosom Buddies. He began teaching acting in 1980. Early on, while working in television as an actor, he designed and built The Gnu Theatre which went on to become one of LA's most awarded and respected theaters. Seymour directed and produced all the shows there. He later moved to Vancouver, British Columbia, where he made guest appearances in numerous Canadian-produced series such as First Wave, Level 9, Da Vinci's Inquest, The Immortal, Smallville, Witchblade, Mutant X, and Sue Thomas F.B.Eye. He spent a total of 11 years in Canada working in the film and television industry and starred in three different T.V. series, Bury The Lead, Show Me Yours and Jeff Ltd., which he co-created and co-wrote. Seymour was also one of the directors and executive producers. He won the "Gemini Award" (the Canadian Emmy) for Best Performance by an Actor in a Continuing Leading Dramatic Role as Kamal Azizi in Bury The Lead. Seymour was nominated a total of three times for that role and once for Best Comedy Series as Executive Producer for Jeff Ltd.. Seymour has been an acting coach for 34 years. He has traveled the country, as well as in Canada and Australia, teaching his highly successful Acting and the Business seminars.

He played Majid in the 2005 film Sabah.

In 2014, Seymour self-published a book on acting The Real Life Actor, available on Amazon.com.

He currently teaches acting classes in Burbank, California.