Here's some concept of the narrators (will also be my Wahctober post for the day)
Molten, as said before, is just a guy with metals covering him. Gray eyes and brown hair too. He's likely going to be the group's straightman if that makes sense.
Avaneesh has black hair with neon in it and purple waves in his eyes, like Fleetway Super Sonic's, but purple. Space themed suit with electricity on it and a slot machine design in the middle. Can with poker chips on it too.
Lucy has a long blonde ponytail, a rainbow aura, a twinkle in her eyes, and a vibrant dress and tights.
Harris/Conor is a large robot, and he can change his shape and color (after all, he has a bunch of interchangeable parts built in). But the one in this concept art is rather large, all gray, and his face screen displays a large white pixelated smile.