Really? I thought that was Sasword.

He at least had a story arc. Drake was around for a few episodes and then vanished because his idol job took precedence.

I couldn't ever, in my good grace, call Sasword useless or superfluous.

TheBee is the town bicycle at this point. Everyone's having a ride. Personally, I'm waiting for whenever KickHopper shows up, and Gatack.

And I don't know what that Swarm thing is ZECT gave everybody, but.. That's not that great either.

So I'm thinking of trying 555 tonight, and maybe Super-1 but I've reach the point where I want to continue now because I loved a lot of the first episodes I've watched.

I can. After selling the Zector to Tendou, Tsurugi becomes a complete waste of space. By the end of the show, the only Riders not to be useless or superfluous are Kabuto and Gattack. The rest are just a huge waste of some of the best Rider designs ever.

Sasword was a pretty great character when it came to not making the show incredibly boring, so that's something.

The problem is that, in order to be a "Useless" character, he has to have had no significant actions or purpose.
Overstaying his welcome isn't the same as being a waste of space.

Yeah...I would say Otoya is a lot of the comic relief...though Nago (IXA) does have his moments.

Everyone in Kiva has comedic moments.