It's Corin Nemec From Parker Lewis Can't Lose
It's Corin Nemec (center) from Parker Lewis Can't Lose. Since the show ended in 1993, Corin has starred in Stargate SG-1 and Supernatural. According to the bio on his Twitter account, he's an "Actor, Writer, Producer, Graffiti Artist, Photographer, blah, blah, blah ;)"
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