Re: Bryan Singer Directing X-Men: Days of Future Past - Part 3
XLS didn't even have cameos IMO. The ones that didn't have promotional photos for X3, had a small role or supporting role in the movie like the role for Psylocke, Arclight, Multiple Man, Leech, Dr. Moira MacTaggert, the President of the United States, Secretary Trask, Omega Kid.
Scenes like Logan in First Class and Xavier in Origins were cameos because they only appeared in 1 scene. Colossus' role in X2 wasn't a cameo because he appeared in more than 1 scene, I think he got at least 4 scenes in X2.