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Kiefer Sutherland vs. Freddie Prinze Jr.
Prinze, who recurred on the eighth season of 24, blasted Sutherland in 2014 for being "the most unprofessional dude in the world." Prinze's experience on the show was so bad that he "just wanted to quit the business after that." Sutherland's rep took the high road in response: "Kiefer worked with Freddie Prinze Jr. more than five years ago, and this is the first he has heard of Freddie's grievances. Kiefer enjoyed working with Freddie and wishes him the best."