|Origin||Chojin Sentai Jetman (1991)|
|Weapon||Bringer Sword, Bird Blaster, Wing Gauntlet|
|English Voice||Jason Griffith|
|Japanese Voice||Toshihide Wakamatsu|
When Shin Seigi got to the Jetmen, they soon run into the mugger who killed Gai on Ryu and Kaori's wedding day. The former crook confessed that he was ordered to kill all the Jetmen that day by someone from the future, and the heroes suspect it to be Iron Majin through his abuse of the Infinity Stones. After they confirm this, Gai immediately agrees to join Shin's army with the rest of his team.
As described above, Gai was initially a loner and an anti-hero who hated being ordered around. His fighting style is similar to Ryu Tendo's, but utilizes dirtier tactics like crotch shots. His hobbies include flirting with women, riding motorcycles, and playing the saxophone. Toward and after the end of Jetman, Gai became a more noble person after seeing that Radiguet's atrocities are what caused Ryu to act like an edgy jerk (in Gai's opinion) and now acts friendlier towards him. Also, he is now perfectly willing to act more like a team player for the sake of the other Jetmen whom he fought with to protect the Earth from Vyram, especially in response to Iron Majin's vicious attacks on Super Sentai and their legacy. Upon officially joining the Avengers Sentai Army, Gai notes that he's not doing this out of vengeance against the man who ordered his death, but because of how he's changed and stayed with the team partly to keep Ryu from becoming (and/or staying) like Tony Stark during the events surrounding the Sokovia Accords Incident. He even lets his murderer go and continue living an honest life.
- "I'm gonna kill Stark!"
- "Get lost, butt-rash!"- pre-battle quote
- "Come near me again, and I'll punch your face in!"- Win quote
- "Condor Finish!!"- Limit Break