|This article is about a/an monster in Power Rangers S.P.D.|
Giganis is a Space Patrol Delta officer named Dru Harrington from Tangar. He and Schuyler Tate are best friends until Dru is sent to the Nebula Academy where he is listed as MIA. That's when he meets Broodwing who teaches him to only look out for himself and introduces him to Emperor Gruumm. Giganis comes to Earth to kill Anubis Cruger but is foiled by his old friend; the Delta Squad Megazord finishes the job and Sky arrests Dru.
- Dwayne Cameron later portrayed Tyzonn in Power Rangers Operation Overdrive.
- In the original Dekaranger, Giganis' Sentai counterpart (Gigantes) grew giant by swallowing the pills, but did not use an oval-shaped device. It was later changed in Power Rangers S.P.D. for Giganis to use an oval-shaped device to grow himself due to the growing method being too offensive to show on an American children's program.