Stephen Amell as James Thompson

Winslow Flegley as John Thompson

Rosamunde Pike as Brittany Keys

Amanda Seyfried as Karen Murphy

Viggo Mortensen as Prof Richard Marston

Emily Kinney as Shirley Logan

Jon Bernthal as Daniel Brown

Gamze Senol as Phoebe Cameron

Sarah Mangione as Frances Cameron

Blake Lively as Alexis Sparrow

Leighton Meester as Naomi Johnson

Katia Cassidy as Sarah Dean

Serena Gomez as Brenda McCarthy

Victoria Justice as Kelly Kingston

Jamie Lynn Spears as Hope Brown

Sharon Stone as Teresa Martini

Tom Hardy as Barman Luke Beckham

Mark Ruffalo as Alexander Cameron

Chris Hemsworth as Jared Rockefeller

Liam Hemsworth as Taxi Driver Paul Green