Silhouette the Pokémon Trainer

Perfect Bidoof aka Peanut Butter (Rusty's Pokémon (Formerly) Silhouette's Pokémon (Currently))

Link

Mayor Haggar

Knuckles

Shadow the Hedgehog (Frenemy)

Mario (Frenemy)

Luigi (Frenemy)

Yoshi

Scorpion

Sub-Zero

Bowser

Pac-Man

The Arcade Ghosts

Metal Sonic

Metal Tails

Toad

Gilius Thunderhead

Soniqua (Y/n, Mother Brain and Sonia's Daughter)

FUTURE Y/n from an Alternate Timeline