The following is NOT canonized by the TTV. Anything listed serves as potential material for the TTV, if they ever want to use any of it. Anything they reject outright (assuming any of them read this) will be labeled Non-Canon.
Additionally, the following characters are from @Gresh113's Matoran Ideas thread, with all images by @Noupix. This thread is to help organize the Matoran into their regions, as well as track who would interact with whom.
Kongu: Gukko Defense Force captain.
Tamaru: flight path navigator (fear of heights); koli player.
Levi (@Noupix original): scout captain; named after a variant of "Lewa."
Spinna (Spinner, altered by @Noupix): scout/soldier.
Defilak: engineer/inventor; scholar.
Breez (Hero Factory): chief Rahi tamer; adventurer.
Bingzak: hermit; Rahi expert; friend of Korgot and Vizuna.