Yuma Ishigaki as Geki Jumonji / Space Sheriff Gavan Type-G

Ryuji Sainei as Banban "Ban" Akaza / Deka Red

Tsuyoshi Hayashi as Houji "Hoji" Tomasu / Deka Blue

Yosuke Ito as Senichi "Sen-chan" Enari / Deka Green

Ayumi Kinoshita as Marika "Jasmine" Hiwatari / Deka Yellow

Mika Kikuchi as Koume "Umeko" Kodou / Deka Pink

Tomokazu Yoshida as Tekkan "Tetsu" Aira / Deka Break

Kenji Ohba as Retsu Ichijôji / Space Sheriff Gavan

Suzuka Morita as Shelly

Hiromi Sakimoto as Lars

Tomokazu Seki as Priest / Berg Seijin Cronen (voice)

Miyuki Nishijima as Pon Emi

Ibuki Yoshikawa as Reception Lady

Mikie Hara as Benikiba

Ryoko Yuui as Sophie

Mako Ishino as Swan Shiratori

Hiroshi Kamiya as Narrator (voice)

Tetsu Inada as Doggie Kruger / DekaMaster (voice) / Wedding Guest

Jun'ichi Haruta as Mad Galan (voice)

Yuto Uemura as Hikaru Hiwatari