The house used for the Simms' estate is in Toronto's Bridle Path, an upscale residential neighborhood.

Writer Adam Barken got pneumonia during the filming of this frosty episode.

The original/working title of the episode was "A Killing Frost".

Recognize Marris Jacobis, the boys' father? He played Detective Hardcastle in the BBC series, Orphan Black.

The visual effect of Castor breaking into ice cubes took 5 days to render when the episode was being edited.

Pawter and Johnny's big kiss takes place in the Toronto Science Centre. Cute, right?

The song Pawter and Johnny kiss to is called "Wait for Love" by Strand of Oaks.

Luke and Rob spent some quality time together studying each other's characters for the body swap.