Owned a brushed-silver Ford Lightning.

Went to high school with Bruce McCulloch, who mentioned him in at least one Kids in the Hall sketch. In the sketch, Bruce is giving advice on how to break into showbiz, and it includes "drinking a lot with guys like Callum Rennie and Terry Rockio and pissing out the back of a fast-moving truck.".

Vocalist Ben Kowalewicz of the popular Canadian punk-rock band Billy Talent has stated that he is his favorite Canadian actor. Rennie played the character Billy Tallent in the Bruce McDonald film Hard Core Logo, which is what inspired the band's name.

Loves to play golf.

Is the middle child of 3 boys.