'Succession': David Rasche on Brutal Finale and Spin-Off Possibilities (Exclusive)

"Succession" has come to an end after a four-season saga of backstabbing and betrayal. The Roy kids aren't all right... The Swede won -- and anointed Tom as his CEO/pain sponge. But the real winners (or at least survivors) of this big bucks "Game of Thrones" are breakout stars Frank and Karl. "Extra's" Billy Bush was with David Rasche, who played Waystar Royco CFO Karl Muller, and proposed a spin-off for Karl and Frank. David said, "That's what we gotta do. It would be the Karl and Frank show. I...