|This article is about a/an monster in Kaizoku Sentai Gokaiger.|
- "Good afternoon, gentlemen!"
- ―Regaeru's first words[src]
He is an Action Commander who is able to twist his arms to form a cannon to fire the Reversal Beam (逆転ビーム Gyakuten Bīmu) from his Gyakutentacles (ギャクテンタクル Gyakutentakuru) to switch opponents' bodies.
He was used in a scheme to switch the minds of various world leaders with Sugormin so it would ensure the nations unconditionally surrender to the Zangyack Empire. However, his plan is unintentionally revealed to the Gokaigers when he uses his ability on Doc and Luka and Gai recognizes one of his other targets.
The Gokaigers manage to stop Regaeru before he could start, and Gokai Green and Gokai Yellow take him out with their Gokai Scramble variation, returning them to their original bodies. Though enlarged, Regaeru is easily outmatched by GokaiOh and GoZyuJin before being destroyed by Hurricane GokaiOh.
- Height - 196cm (Giant Form - 49.0m)
- Weight - 140kg (Giant Form - 350.0t)
- His motif is the one of a squid and clown