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)