he subsequently appeared in guest roles in various american and canadian series. in ctv's "motive" he played a man driven to murder in revenge for his sister's death; in the short-lived nbc series "constantine" he played a father struggling to deal with the supernatural and in the tnt police procedural "rizzoli and isles" he portrayed a detective turned murderer. he also had a recurring role in the third season of the cbc series "arctic air" as tag cummins, the love interest of the series female protagonist, krista ivarson, portrayed by pascale hutton. additionally, matter appeared in the 'vip lounge' online content produced to accompany the show, which was available through the series page on the cbc website.