Freak City is the twentieth episode in the first season of Adventure Time. It is the twentieth episode overall.
- Finn / Tree Man / Gorflax - Jeremy Shada
- Jake / Boy Bear / Snowball / Two-Headed Monster Head #1 / Rump #2 - John DiMaggio
- Ice King / Bartender / Snowman / Magic Man / Zap / Wee Wee - Tom Kenny
- Gork / Two-Headed Monster Head #2 - Michael Dorn
- Rump #1 / Trudy / Kim - Maria Bamford
- Princess / Girl Bear / Swan - Kerri Kenney-Silver