- Seo-young Kim
- Mangchi / Hammerboy (voice)
- Jeong-min Bae
- Princess Poplar
- Yong-jun Kim
- Grandfather
- Seok-pil Choi
- Moonk
- Su-rim Han
- Aeng-du
- R.P. Blondell
- Additional Voices
- J. David Brimmer
- Pultaco
- Dan Green
- Moonk
- Rebecca Honig
- Angdu's Mother
- Kip Kaplan
- Additional Voices
- Rory Max Kaplan
- Patrol Commander
- Ross Lefko
- Mr. Winebottle
- Rachael Lillis
- Poplar
- Josh Mosby
- Nanajule
- David Logan Rankin
- Grandfather
- Kelly Ray
- Angdu
- Hank Roberts
- Mooskan
- Andrew Scott
- King Waldo
- Veronica Taylor
- Mangchi
- Bill Timoney
- Angdu's Father
