Jesster

Ralthier and Xane Trezzyn in Superheroes

Khazka StoneBlood

Toliver in Frost Guard

Emilio in Junior Mobsters

Academis Nostalga in Ur

Luigi in Gangsterland

Humphrey Buckskin in Warlords of Barsoom

Tag Leonards in HotZone

Derek Mudd in Into The Black

Udyr "Orc Thrower" Hjemta in Blood on the Snow

Groth in Steamworks & Arcana

As well as dozens of NPCs and villains.

GM of Nigelites, Ur, Empire of the Clouds, Hounds of Hell (WWII), Avatars, Coldstone, TRIO and occasional one-offs like Hot Zone.