The Z Warriors discover an unopenable music box and are told to open it with the Dragon Balls. The contents turn out to be a warrior named Tapion who had sealed himself inside along with a monster called Hildegarn. Goku must now perfect a new technique to defeat the evil monster.
| Actor | Role |
|---|---|
 Masako NozawaSon Goku / Son Gohan / Son Goten / Gotenks (voice) | Son Goku / Son Gohan / Son Goten / Gotenks (voice) |
 Takeshi KusaoTrunks / Gotenks (voice) | Trunks / Gotenks (voice) |
 Mayumi TanakaKuririn / Minoshia (voice) | Kuririn / Minoshia (voice) |
 Hiromi TsuruBulma (voice) | Bulma (voice) |
 Masaharu SatoKame Sennin / Shenlong (voice) | Kame Sennin / Shenlong (voice) |
 Yuko MinaguchiVidel (voice) | Videl (voice) |
 Ryo HorikawaVegeta (voice) | Vegeta (voice) |
 Hiro YuukiTapion / Sharpner (voice) | Tapion / Sharpner (voice) |
 Juji MatsudaHoi (voice) | Hoi (voice) |
 Nobuhiko KazamaRobber (voice) | Robber (voice) |
 Yasuhiko KawazuCaptain (voice) | Captain (voice) |
 Ichiro NagaiRubbernecker (voice) | Rubbernecker (voice) |
 Makiko OhmotoTeacher (voice) | Teacher (voice) |
| YYoshiyuki YukinoReporter (voice) | Reporter (voice) |
 Shin AomoriHildegarn (voice) | Hildegarn (voice) |