渡辺久美子
— Sergeant Keroro (voice)
小桜エツコ
— Private Second Class Tamama (voice)
Jōji Nakata
— Corporal Giroro (voice)
Takehito Koyasu
— Sergeant Major Kururu (voice)
Takeshi Kusao
— Lance Corporal Dororo (voice)
Hōko Kuwashima
— Fuyuki Hinata (voice)
Chiwa Saitō
— Natsumi Hinata (voice)
平松晶子
— Aki Hinata (voice)