Katsu Don
- Katsu Don is an alien from the cartoon portion of the Generation 1 continuity family.

Katsu Don is a blacksmith on his homeworld of Zamojin. He lives in a hut outside the city of Tozin and possesses the inert body of Nijika, created by his ancestor Niko Don.
Fiction
The Transformers cartoon
- Voice actor: Jack Angel (English), Osamu Saka (Japanese)
On seeing Perceptor crash to the ground in the mountains near his hut, Katsu Don mounted his steed Brutalo and went to investigate. He recovered Perceptor, who was suffering from transformation lock, and was able to remove the Autobot's universal emulator, hidden behind his Autobot insignia, and use it to repair Nijika. Interrupted by the arrival of two Sharkticons, of which he made short work, Katsu was surprised when Nijika at last spoke—Perceptor had become housed in the small robot as part of the universal emulator. The Autobot was able to extract from Katsu the history of his world and how the Quintessons had sealed it off from the rest of the universe with a quadrant lock.
Concerned that the Quintessons had returned, Katsu and Perceptor went to the Zamojin Empress with the news, and they were able to interrupt Blurr's imminent sacrifice. During the confusion, Nijika was grabbed by Cyclonus. Katsu grabbed the Decepticon by the legs and was taken aboard the Quintesson spaceship, where he was seized and a device used to torture him. The Quintessons traded Katsu's life for the universal emulator, and he was able to escape with the Autobots.
Fortunately, Perceptor had sabotaged the quadrant lock, releasing Zamojin from its prison. With the Zamojin telepathic network restored, Katsu promised he would someday complete his ancestor's work, and that Nijika would reach the stars. The Face of the Nijika
Transformers Legends comic
When the Zamojin determined that the Legends Universe they'd created was becoming threat, Katsu Don set out to destroy it, only to meet with resistance from Leo Prime. He won their space duel by draining his opponent's "beast power" with Nijika's weapon mode, then followed him to the planet's surface where he attacked Lio Junior, earning him the enmity of Lio Convoy. Convoy then granted Leo Prime a new body powerful enough to defeat Katsu Don, who fled back to his home universe, warning Prime that he didn't understand the danger posed by the Legends Universe. Bonus Edition Vol. 41
Notes
- Katsu Don shares his name with katsudon, a Japanese fried pork dish. The name of Katsu Don's ancestor, Niko Don, has a similar pronunciation to nikudon, a Japanese dish of pork on rice.
Foreign names
- Japanese: Yunkan (ユンカン)

