'9-1-1's Oliver Stark Weighs In on if Buck Will Take Over as Fire Chief (Exclusive)

Oliver Stark chats with ET at the ABC Soiree about '9-1-1' season 9, returning Oct. 9. The actor opens up about Mark Consuelos' cameo in the first episode of the new season and the 'crazy' plotline he's involved in. Plus, Oliver reacts to the possibility of his character, Buck, taking over as the new fire chief after Peter Krause's show exit.