 | Jeremy Shada als Finn (voice) |
 | John DiMaggio als Jake (voice) |
 | Tom Kenny als Ice King (voice) |
 | Pendleton Ward als Snow Golem (voice) |
 | Dee Bradley Baker als Fire Wolves/Cow (voice) |
| Bong Hee Han | Director |
| Larry Leichliter | Director |
| Pendleton Ward | Creator |
| Tom Herpich | Screenplay |
| Kent Osborne | Staff Writer |
| Patrick McHale | Staff Writer |
| Mark Banker | Story |
| Patrick McHale | Story |
| Kent Osborne | Story |
| Pendleton Ward | Story |
| Kelly Crews | Producer |
| Eric Homan | Associate Producer |
| Kevin Kolde | Supervising Producer |
| Curtis Lelash | Executive Producer |
| Brian A. Miller | Executive Producer |
| Jennifer Pelphrey | Executive Producer |
| Fred Seibert | Executive Producer |
| Rob Sorcher | Executive Producer |
| Pendleton Ward | Executive Producer |
| Casey James Basichis | Music |
| Timothy Kiefer | Music |
| Nick Jennings | Art Direction |
| Keith Mack | Production Manager |
| Tony Tedford | Post-Production Manager |
| Natasha Allegri | Storyboard Artist |
| Alex Campos | Prop Designer |
| Nate Cash | Storyboard Artist |
| Michael DeForge | Prop Designer |
| Tom Herpich | Storyboard Artist |
| Andy Ristaino | Prop Designer |
| David C. Smith | Storyboard Artist |
| Michelle Xin | Prop Designer |
| Timothy J. Borquez | Supervising Sound Editor |
| Krandal Crews | Dialogue Editor |
| Eric Freeman | Mix Technician |
| Diane Greco | Foley Artist |
| Chris Hoetger | Machinist |
| Tony Orozco | Sound Editor |
| Karie Gina Pham | Recording Supervision |
| Robert Serda | Sound Recordist |
| Thomas Syslo | Supervising Sound Editor |
| Oliver Akuin | Editor |
| Paul Douglas | Supervising Editor |
| Alicia Parkinson | Post-Production Manager |
| Nicolas 'Nick' Carr | Music Editor |
| Ashley Eriksson | Music |
| Pendleton Ward | Music |
| Martin Ansolabehere | Background Designer |
| Sandy Benenati | Animation Supervisor |
| Alex Campos | Character Technical Supervisor |
| Vicki Casper | Animation |
| Michael DeForge | Character Designer |
| Ghostshrimp | Background Designer |
| Don Judge | Animation |
| Santino Lascano | Background Designer |
| Sandra Lee | Background Designer |
| Greg Levitan | Animation |
| Tammy List | Animation |
| Michel Lyman | Animation |
| Andy Ristaino | Character Designer |
| Ron Russell | Background Designer |
| Catherine Simmonds | Color Designer |
| Chris Tsirgiotis | Background Designer |
| Won Dong Kun | Animation Supervisor |
| Michelle Xin | Character Designer |
| Mark Banker | Story Editor |
| Linda Barry | Production Manager |
| Joseph Game | Production Assistant |
| Antonio Gonella | Technical Supervisor |
