Kit Harington
John F. Donovan
Natalie Portman
Sam Turner
Jacob Tremblay
Rupert Turner
Susan Sarandon
Grace Donovan
Kathy Bates
Barbara Haggermaker
Ben Schnetzer
Rupert Turner (21 y.o.)
Thandiwe Newton
Journalist
Chris Zylka
Will Jefford Jr.
Emily Hampshire
Amy Bosworth
Michael Gambon
Man in Diner
Craig Eldridge
Uncle Patrick
Gijs Blom
Rupert's Boyfriend
Rob Baker
Late Night Show Host
Anne Mroczkowski
News Anchor
James Marchant
Police Officer
Suzanne Virdee
Female Anchor
Sangita Patel
Journalist #1
Matthew Raudsepp
Hellsome High Actor
Pierre-Luc Lafontaine
Fan in the Club
Anthony Luigi Aguiar
Young Fan
Hannah Morgan Lord
Young Fan
Rebecca Windheim
Young Fan
Dakota Jamal Wellman
Eric (uncredited)
Leni Parker
Bonnie (uncredited)
Katy Breier
Trish (uncredited)
Alison Louder
Hellsome High Actress (uncredited)
Brent Skagford
Editor #1 (uncredited)
Carolyn Fe
Porter (uncredited)
Connor McMahon
Intern (Sasha) (uncredited)
Holly Bernier
Journalist (uncredited)
Sam Taylor Buck
Young Daniel (uncredited)
Daniel Murphy
Editor #2 (uncredited)