Joe Lando

as Peter Jensen

Nicole Eggert

as Julia Merrow

Erica Durance

as Kara Jensen

Peter Graham-Gaudreau

as Robert Booker

Garwin Sanford

as Stan Chasen

Gerard Plunkett

as Dr. Raymond Ardmore

Genevieve Buechner

as Young Kara

Lauren K. Robek

as Mary Jensen

Rachel Hayward

as Karen Sowells

Kymberly Sheppard

as Stunt EDAC Worker

Jan D'Arcy

as Margaret Harrington

Jillian Marie Hubert

as Samantha

Carrie Ritchie

as Miss Potion

Owen Walstrom

as Stunt Suspect

Brad Turner

as Dr. John Tedesco

Peter Bryant

as David Lincoln

Adam Murphy

as Jerry

James Purcell

as Lou

Reginald Hampton

as News Anchor

David Richmond-Peck

as Chet

Alexander Mandra

as Stunt Lab Worker

Celeste White Steele

as Lab Technician (uncredited)