The first one: Plasma-Tron X

Second one: You've seen him before, Royker

Third one: Barnaby Burgston (aka Bully Barry), you've also seen him

Fourth: Bloomerito Sr.

Fifth: Frederick Roxxo (or just Freddo)

Sixth: DJ Jimmy Froggo

Seventh: Hybegas, since you've also seen him

Eighth: Blenzo, the guy who did the 67 pose in front of Vumbra

Ninth: Leonard, the chill but lazy guy, you've seen it so often

Tenth: Dr. Sasha Mispurr, the smart scientific guy

and finally: Ooga Yooga, my most often forgotten character

(i know this list is long but it's my only way to consider it as their descriptions)