Chalk was born in Southampton, Hampshire, England and moved with his family to Vancouver, Canada in 1957. He has been involved with professional theatre since 1978, and has performed at the Vancouver Playhouse Theatre Company (VPTC), the Arts Club Theatre Company (ACTC), The Vancouver Theatresports League and numerous theatres in British Columbia, Ontario and Alberta.
The last live stage production he did was A Funny Thing Happened on the Way to the Forum, where he played Miles Gloriosus. He also performed in Henry IV and As You Like It at the VPTC, as well as Dracula and Passion at the ACTC.
Most of his career has been in film and television; he had a recurring role on Cold Squad for four years, for which he won Gemini Awards in two consecutive years, and until the close of its ninth season had a recurring role on the science-fiction series Stargate SG-1 as russian Colonel Chekov.
He is also a veteran of over 1,500 animated productions including Class of the Titans, and the 2002 remake of He-Man and the Masters of the Universe in which he provided voices for Man at Arms and Whiplash. He is also known for his voice work in the Transformers franchise as the voice of Optimus Primal in Beast Wars and Beast Machines, and as Optimus Prime in the Unicron Trilogy (Transformers: Armada, Energon and Cybertron). He also voiced the original Megatron in an episode of Beast Wars.
Most recently his voice has been heard as the villainous Sky Marshall Wade in the newest incarnation of the Voltron story; Voltron Force.
In the 2000s, he has appeared occasionally in the Sci-Fi Channel shows Eureka, as Col. Briggs and Painkiller Jane, as Ruben Hennessey. His film work is also extensive including films such as: Freddy Vs Jason, The Fly II and Watchmen, to name but a few!
Chalk currently lives with his wife Lynda.
Garry is unfortunately unable to join us for this tour, he hopes to be with us again for a future tour.