So even though the game's full, I have been awash with bad character ideas.
Mind Flayer Satan: Larval Flayer 1/Neothelid 14/Balor 5
"This Isn't Even My Final Form!": Doppelganger 3/Greater Doppelganger 9/Warshaper 5/Half-Fiend 3
"Get off my lawn, Cephalopods!": Aboleth 7/Fiendish Creature 2/Sorcerer 1/Wilder 1/Cerebremancer 9
"Still better than Athas.": Halfling Psychic Warrior 6/Tribal Psionicist 5/Plane Shifter 9
Doltough, Abyssal Prospector: Dabus 2/Jovoc 5/Master 10/Exemplar 3
Kaptin Skurvy: Marraenoloth 10/Dread Pirate 10
Steve, out-of-work attorney of the 9 Hells: Harvester Devil 7/Fiend of Corruption 6/Rogue 7
Chirrlaxx the Protofiend, Dark Lord of Darkness: Lemure 1/Darklight Wizard 1 (formerly Pit Fiend 20/Max Levels in Every Base Class)