|Age:||24 (TV series)|
|First appearance:||Seize the Light!|
|Number of appearances||TBA|
|Portrayed by||Masami Nakagami|
Katsumi Kajio (Team Lightning XIG) is a character in Ultraman Gaia. He is portrayed by Masami Nakagami. He is 24 years old. The leader of Team Lightning. He enlisted in XIG be withdrawn from Top Gun was the GUARDS. Has a high pride and absolute confidence in the handling, but he had a fairly high elitism first time around. Kajio never amused when Gamu joins XIG due to him being a student. Kaijo surprisingly terrible at socializing. Due to this, he always went away from everyone, though there was little able to converse with others on a mission other than the initial. He develops a relationship with Atsuko's sister, Ritsuko.