Character Name : Dr. Michelle Riley

Original Name : Chelsea Edmundson

Gender : Female

Character Name : Major Frank Lawrence

Original Name : Tony Todd

Gender : Male

Character Name : Father

Original Name : Tobin Bell

Gender : Male

Character Name : Dr. Sam Ellis

Original Name : Chad Michael Collins

Gender : Male

Character Name : Dr. Sidney Barlow

Original Name : Cullen Douglas

Gender : Male

Character Name : The Handler

Original Name : Christopher Matthew Cook

Gender : Male

Character Name : Dr. Denise Cooper

Original Name : Debbie Fan

Gender : Female

Character Name : Dr. Jaques Bisset

Original Name : Sharif Ibrahim

Gender : Male

Character Name : Ben Riley

Original Name : Spencer Langston

Gender : Male