Katie Cassidy
Kelli Presley
Michelle Trachtenberg
Melissa Kitt
Mary Elizabeth Winstead
Heather Fitzgerald
Lacey Chabert
Dana Mathis
Oliver Hudson
Kyle Autry
Kristen Cloke
Leigh Colvin
Andrea Martin
Barbara 'Ms. Mac' MacHenry
Yan-Kay Crystal Lowe
Lauren Hannon
Karin Konoval
Billy's Mother
Robert Mann
Billy Lenz - 20 & 35 Years
Dean Friss
Agnes - 16 & 22 Years
Jessica Harmon
Megan Helms
Leela Savasta
Clair Crosby
Cainan Wiebe
Billy Lenz - 5 & 12 Years
Christina Crivici
Agnes - 8 Years
Kathleen Kole
Eve Agnew
Howard Siegel
Lover / Stepfather
Peter Wilds
Frank Lenz
Ron Selmour
Security Guard
Michael Adamthwaite
Santa
Peter New
Sanitarium Orderly
Christian Sloan
Richard Steinmetz
Alycia Purrott
Candy Striper
Juan Riedinger
Morgue Attendant
Aaron Pearl
Bludworth
Peggy Logan
Nurse
Jill Teed
News Reporter
Peggy Jo Jacobs
Weathergirl
Jerry Wasserman
Medical Examiner
Derek McIver
Orderly
Evan Adams
Doctor
Jody Racicot
Attendant
Anne Marie DeLuise
Kelli's Mother
Greg Kean
Kelli's Father
Kent Kubena
Reindeer
Wendy Buss
Security (uncredited)