An alien assassin, Omega, who makes a living by hunting down Space Sheriffs, arrives on Earth. Adapting a helmet, twin shoulder cannons, and other weapons into his fighting style after losing to Gavan and Sharivan, Omega is now targeting Shaider and challenges him to a fight to the death. Space Sheriff Shaider is the film adaptation of the Metal Heroes series of the same name. This movie takes place between episodes 19 & 20 of the TV show.
| Actor | Role |
|---|---|
 Hiroshi TsuburayaDai Sawamura / Space Sheriff Shaider | Dai Sawamura / Space Sheriff Shaider |
 Naomi MorinagaAnnie | Annie |
 Masayuki SuzukiKojiro Oyama | Kojiro Oyama |
| WWaka SatomiChildcare Worker | Childcare Worker |
 Toshimichi TakahashiOmega | Omega |
 Tōru ŌhiraNarrator (voice) | Narrator (voice) |
| JJun YoshidaHigh Priest Poe | High Priest Poe |
| KKazuhiko KuboHessler | Hessler |
 Shozo IizukaGreat Emperor Kubilai (voice) | Great Emperor Kubilai (voice) |
 Mai OoishiGirl 2 | Girl 2 |
| RRina NaoiGirl 5 | Girl 5 |
 Sonny ChibaShaider (Voice) | Shaider (Voice) |