Malignant

Gary Cairns

Allex

布拉德·道里夫

The Man

Nick Nicotera

Chad

Sienna Farall

Emily

Stefan Avalos

Grandfather, young

Jennifer Blanc-Biehn

Gail (as Jennifer Blanc)

Dana Daurey

1940's patient

Tanner Davis

The man, young

Ken Dickason

Test subject #1

卡拉·德罗格

Woman in pit

赛义达·阿里卡·埃库洛纳

Doctor

Darren P. Leis

Neurosurgeon

Thomas Loureiro

Sean

Suzan Meier

Nurse Richmond

Trista Robinson

Test subject #3

Stephen Wastell

Charlie

Norman Zeller

The Grandfather

Dana Fishman

Bar Customer

Gavin Huffaker

Man's Brother Sam, Young