Wade Wilson / Deadpool / Juggernaut (voice) / Himself
Russell Collins / Firefist
Ellie Phimister / Negasonic Teenage Warhead
Piotr Rasputin / Colossus (voice)
Gaveedra-Seven / Shatterstar
Telford Porter / Vanisher
Redneck #2 (as Dickie Greenleaf)
Older Russell Collins / Firefist
Logan / Wolverine (archive footage)
Charles Xavier / Professor X (uncredited)
Henry McCoy / Beast (uncredited)
Kurt Wagner / Nightcrawler (uncredited)
Ororo Monroe / Storm (uncredited)
Peter Maximoff / Quicksilver (uncredited)
Scott Summers / Cyclops (uncredited)