[Talisman]

I've watched two Sentai in full (well, one, still working on the other), but this list would be pretty monochrome in any case, so I'll just list one no one else has.

Gokaiger- Gokai Blue/Joe Gibken.

Joe is not a pleasant person to be around most of the time. He is stoic, to the point, and does not play games. He flicks his Mobirate open, kicks ass, and goes home. Justice and empathy are for Don, Ahim, and Gai to worry about. He is disciplined and methodical in how he fights, be it with sword or gun (note how he tends to use a two-handed grip with the Gokai Gun as opposed to everyone else using a single-handed grip) and probably the only other tactical thinker on the team after Don, which is fitting given his background as a Zangyak special forces operative.

However, if he can be summed up in one word, it is loyalty. Loyalty to his Captain, and loyalty to his crew. He would stand at the backs of, and die for, every last one of them without hesitation, especially in the case of Marvelous, to whom he owes his life. Loyalty to his fallen friend, Sid, who taught him how to fight, and eventually had to kill with his own hands and techniques. He is a person with few friends but an undying dedication to each and every one he has, and by the end of the show, this has grown to encompass all other Sentai. Being former military myself, this is an aspect I both respect and empathize with deeply.