When Ego Met Improv: The Story of SNL's Worst Host Ever, Steven Seagal
In 1991, action star Steven Seagal hosted SNL, claiming he'd never heard of it. He refused to be the butt of any joke, scrapped planned skits, and wrote his own where he beat up his personal stuntmen, earning him a permanent ban and the title of 'worst host ever' from Lorne Michaels.