Who plays the main character of the show in which Stephen Tobolowsky plays the role of Stu Beggs?
Stephen Tobolowsky:  He is known for film roles such as annoying insurance agent Ned Ryerson in "Groundhog Day" and amnesiac Sammy Jankis in Christopher Nolan's "Memento", as well as such television characters as Commissioner Hugo Jarry ("Deadwood"), Bob Bishop ("Heroes"), Sandy Ryerson ("Glee"), Stu Beggs ("Californication"), and Action Jack Barker ("Silicon Valley"). Californication (TV series):  The show follows New Yorker Hank Moody (David Duchovny), a troubled novelist who moves to California and suffers from writer's block.
i don't know