The third film finds Ataru transformed into a pink hippopotamus, which sends Lum chasing after the wicked magician responsible, with catastrophic results. With Lum gone, her friends decide that there is no reason to remain, and so Tomobiki slowly returns to normal. The highlight of the film is a high speed chase scene with an angry Lum flying after the mysterious Ruu through the city at night and into a hall of mirrors (and illusion ). Ataru's true feelings for Lum are probably more obvious in this film than any of the others.
古川登志夫
as Ataru Moroboshi (voice)
平野文
as Lum (voice)
神谷明
as Shutaro Mendou (voice)
島津冴子
as Miyake Shinobu (voice)
杉山佳寿子
as Ten (voice)
鷲尾真知子
as Sakura (voice)
Kazuteru Suzuki
as Ruu (voice)
菅谷政子
as Oshima the Tanuki (voice)
岩田光央
as Ruu the Magician (voice)
野村信次
as Kakugari (voice)
島本須美
as Lahla (voice)
村山明
as Perm (voice)
