Moonlightaholics

According to CBS press releases, Kevin Weisman will start a role as a recurring character in the second episode of 'Scorpion'. There is a minor spoiler in the episode description, but basically, his character befriends Walter O'Brien, the head of Scorpion.

http://www.cbspressexpress.com/cbs-entertainment/releases/view?id=43444

According to his Weisman's IMDB page, he appears in episodes 2.2 through 2.5

http://www.imdb.com/name/nm0918858/