Power Rangers: Lost GalaxyEditStraight-laced, sensible, and ambitious, Kai is the classic overachiever. Having been brought up in a strict military family, he always does things by the book and likes everything in its place. His orderly world is turned upside down when he becomes a Power Ranger, and he must learn that sometimes rules are meant to be broken when it comes to saving the universe. He is apparently a good friend of Kendrix Morgan. His fighting style consists of grappling moves and throws, presumably taught by the military.
Kai was responsible for the majority of the meals the Rangers ate aboard Terra Venture. When a lovesick Kai rendered himself bed-ridden for several days after a romantic letdown, the other Rangers complained about the lack of decent food to eat, as Kai was the Galaxy Ranger who either had the greatest cooking expertise, or the only one who was willing to cook for the group.
Power Rangers: Lightspeed Rescue Edit
Kai returned to Earth with the Galaxy Rangers and helped the Lightspeed Rangers defeat Trakeena for the final time. He fought alongside Chad Lee, the Blue Lightspeed Ranger and his Blue Ranger successor.
In Other MediaEdit
Kai, as Galaxy Blue, is available as an unlockable character in the Playstation 2 version of the Power Rangers: Super Legends video game when the player must collect the letter R-A-N-G-E-R in one of the Lost Galaxy levels.
- Kai is the only Power Rangers character to share a first name with a Sentai character. Specifically, Kai Samezu of Gaoranger and Kai Ozu of Magiranger.
- Kai is the first Asian Blue Ranger, followed by Chad, Lucas, Dax and Theo.
- Unlike his Gingaman predecessor, who was a bit goofy at times, Kai is serious.
- Unlike his Gingaman predecessor, Kai had a crush on a girl in only 1 episode in the early half of this season but turned out that that girl (Hannah) had intentions to marry a guy unlike him.