 | Choi Seung-yoon als So-young |
 | Ethan Hwang als Dong-hyun |
 | Dohyun Noel Hwang als Child Dong-hyun |
 | Anthony Shim als Simon |
 | Hunter Dillon als Harry |
 | Jerina Son als Mi-sun |
 | Kang In-sung als Won-shik / In-shik |
 | Choi Jong-ryul als Grandpa |
 | Lee Yong-nyeo als Grandma |
 | Vanessa Przada als Ashley |
| Tristan Ranger als Jackson |
 | Aiden Finn als Eggers |
| Kendra Anderson als Miss Jane |
 | Ryan Robbins als Mr. Murray |
 | Eric Keenleyside als Principal Lafferty |
 | John Cassini als Dr. Rydell |
 | Sean Poague als Mr. Davis |
 | Bryce Hodgson als Larry |
| Anthony Shim | Director |
| Anthony Shim | Writer |
| Anthony Shim | Editor |
| Anthony Shim | Producer |
| Rebecca Steele | Producer |
| Christopher Lew | Director of Photography |
| Andrew Yong Hoon Lee | Original Music Composer |
| Bryan Demore | Producer |
| Giuliana Bertuzzi | Executive Producer |
| Charlie Kerr | Executive Producer |
| Matt Kerr | Executive Producer |
| Louisa Birkin | Production Design |
| Tiana P. Gordon | Art Direction |
| Brendan Taylor | Set Decoration |
| Lovisa Drever | Costume Design |
| Matt Drake | Supervising Sound Editor |
| Matt Drake | Sound Re-Recording Mixer |
| Matt Drake | Sound Designer |
| Eric Gambini | Visual Effects Supervisor |
| Gillian Pearson | Visual Effects Producer |
| Su Kim | Casting Director |
| Biko Gogaladze | Foley Artist |
| Jillian Budac | Second Assistant Director |
| Daniel Redenbach | First Assistant Director |
| Trevor Zurkan | Second Assistant Director |
| Patrick Mackeigan | Third Assistant Director |
| Typhnee Ogunyele | Third Assistant Director |
| Tanya Steinauer | Third Assistant Director |
| Beso Kacharava | Foley Supervisor |
| Giorgi Lekishvili | Foley Mixer |
| Alexander Sanikidze | Foley Editor |
| Joel McGowan | Stunt Coordinator |
| Greg Goudreau | Gaffer |
| Evan Moyer | Grip |
