Reed Strucker
Kate Strucker
Marcos Diaz / Eclipse
Lauren Strucker
Andy Strucker
Jace Turner
Clarice Fong / Blink
John Proudstar / Thunderbird
Lorna Dane / Polaris
Esme Frost / Sophie Frost / Phoebe Frost (credit only)
Reeva Payge (credit only)
Paula Turner
Officer Wilson
Graph
Small Mutant
Hospital Administrator
Michael
Screaming Mutant
OBGYN
Large Flailing Mutant
Dr. Kelsey
Purifier (uncredited)
Mutant Prisoner (uncredited)