The Following Contains Spoilers for Deadpool & WolverineMarvel's casting announcements tend to be a big deal. One of the weird little drawbacks of Marvel's continuity gimmick is that it makes recasting characters or shifting actors around very difficult. A Marvel performer could be in the role for a decade or more. Deadpool & Wolverine demonstrates the studio's willingness to bring back anyone who has ever been attached to a comic book movie. However, that film's excesses brought beloved performers like Nathan Fillion into roles like Headpool, unbeknownst to a lot of viewers.