9) Johnny Depp and Peter DeLuise in 21 Jump Street (2012)
The biggest shock of the 2012 action-comedy 21 Jump Street was that it wasn't a restart. It was really a follow-up. The Channing Tatum/Jonah Hill movie links back to the series through its funny appearances by Johnny Depp and Peter DeLuise, who quickly return to their roles from the show when their characters reveal themselves as undercover officers (and fellow Jump Street veterans) to conclude a lengthy investigation. At Depp's specific request, his character meets an unexpected end with a shot in the neck.
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Edited by Apoorva Jujjavarapu