Blake Lively (Lily Bloom), Justin Baldoni (Ryle Kincaid), Jenny Slate (Allysa), Brandon Sklenar (Atlas Corrigan), Hasan Minhaj (Marshall), Kevin McKidd (Andrew Bloom), Amy Morton (Jenny Bloom) more..., Alex Neustaedter (Young Atlas Corrigan), Isabela Ferrer (Young Lily Bloom), Robert Clohessy (Sheriff), Robin S. Walker (Doctor Johnson), Emily Baldoni (Doctor Julie), Adam Mondschein (Doctor Dunbar), Caroline Siegrist (Katie), Robyn Lively (Ms. Byland), Megan Robinson (Ms. Smith), Steve Monroe (Realtor), Daphne Zelle (Female Waiter)

Christy Hall (Screenplay), Alex Saks (Producer), Colleen Hoover (Executive Producer), Christy Hall (Producer), Steve Sarowitz (Executive Producer), Jamey Heath (Producer), Kristy Carlson (Casting) more..., Robb Sullivan (Editor), Andrew Calof (Executive Producer), Andrea Ajemian (Executive Producer), Colleen Hoover (Book), Lauren Shaw (Stunt Coordinator), Oona Flaherty (Editor), Russell Barnes (Production Design), Eric Daman (Costume Design), Barry Peterson (Director of Photography), Rob Simonsen (Original Music Composer), Duncan Blickenstaff (Original Music Composer), Roy Farfel (Stunt Coordinator), Paige Rhea Allison (Stunts), Michael Viola (Utility Stunts), Jason Ng (Utility Stunts), Zoe Sansanowicz (Stunts), Blake Lively (Producer), Todd Black (Executive Producer), John Logan Pierson (Executive Producer), Season Kent (Music Supervisor), Derek Johnson (Stunts), Melody Garcia (Stunts), Thomas Canestraro (Stunts), Peter Wallack (Stunts), Bob Roseman (Stunts), Paige Dubrul (Stunts), Cole Mason (Stunts), Charley Brucato (Stunts), Salar Ghajar (Stunts), Kyle Woods (Stunts), Stephen Pollak (Stunts), Andrea Ajemian (Unit Production Manager), Julie A. Bloom (First Assistant Director) and others.