Terence Reginald Kelly (born June 12, 1944) is a Canadian film, television and stage actor. He is best known for his roles as RCMP officer Sgt. Wilkes in Red Serge, for which he garnered a Gemini Award nomination for Best Actor in a Dramatic Program or Mini-Series at the 2nd Gemini Awards in 1987, and as Grandpa Heffley in the Diary of a Wimpy Kid series.
The Good Doctor
Bates Motel
R. L. Stine's The Haunting Hour
Caprica
Harper's Island
Fear Itself
Eureka
Psych
Supernatural
Stargate Atlantis
Breaking News
The Dead Zone
Smallville
Night Visions
Higher Ground
Da Vinci's Inquest
The Crow: Stairway to Heaven
First Wave
Cold Squad
Stargate SG-1
Titanic
Millennium
Poltergeist: The Legacy
The Outer Limits
Viper
The X-Files
The Odyssey
Palace Guard
It
Glory Days
21 Jump Street
MacGyver
Airwolf
Sonic the Hedgehog
The Exorcism of Emily Rose
Diary of a Wimpy Kid: Rodrick Rules
