Jenny Porter

Vivian Schilling

Dr. Langdon

Martin Kove

Jack Porter

Brion James

Vince

Bill Paxton

Steven Forest

Sam Clay

Georgie

Scott Thomson

Mr. Johnson

Sydney Lassick

Mr. Johnson

Sidney Lassick

Secretary

Max John James

Georgie

Scott Thompson

Newscaster

Eric Parkinson

Kafka

James Karen

Experiment Victim

Lance August

Marshall

Tim Doyle

Dr. Lane

Sarah Kaite Coughlan

Dr. Evans

David Wells

Schilling Stunt Double

Sherman Baylin

Paula

Amanda Foreman

Office Extra

Gerry Lively

Female Dancer

Julie Strain

Male Dancer

David "Shark" Fralick

Office Extra

Randolf Turrow

Lab Technician

Collin Bernsen

Model

Pamela Pond

Limo Driver

Greg Grunberg

Gun Store Owner

Chris Ryan

Computer Operator

Gerald Brodin

Welles

Brian Brophy

Frat Boy Leader

Rick Rossovich

Detective #1

Charles Boswell

Detective #3

Scott Williamson

Doctor

Alba Francesca

Frat Boy

Doug Friedman

Fred

David Bowe

Stocky Mourner

Brad Grunberg

Wiry Mourner

Gene Pack

Passport Man Two

Roberto Donati

Fred's Assistant

Steve Alexander

Model

Pamela Runo

Paramedic One

Pat Reilly

Paramedic Two

Chad Savage

Voice of Sid Barney

John Matthew

Waiter

Mark Sanderson

Counterman

Lawrence Trilling

Punk Girl on TV (archive footage)

Linnea Quigley