Suggestions by @kianwatson

Wario

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +3

Thanos

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +1

Mojo Jojo

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +2

Venom (Eddie Brock)

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +2

Green Goblin (Norman Osborn)

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +1

Darth Vader

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +1

King Bowser Koopa Sr.

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +1

Hades

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +2

Dr. Eggman (Dr. Ivo Robotnik)

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +2

Sheldon J. Plankton

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +1

Morag

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +3

Mark Moraghan

as Enemies of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +2

Tails the Fox (SatAM)

as Friends of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +2

Sonic the Hedgehog

as Friends of Luan Loud in Friends and Enemies of Fictional Characters (My Version)

Score: +2

Morag

as Best Villain in Best & Worst Of Childhood

Score: +1

Vlad Masters (Vlad Plasmius)

as Best Villain in Best & Worst Of Childhood

Score: +1

Vexus

as Best Villain in Best & Worst Of Childhood

Score: +1

Donna Murphy

as Simon's Mom in The Raft Wars Movie

Score: +1

Eric Stuart

as Cliff in The Adventures of the Loud Pets

Score: +1

Eric Bauza

as Bugs Bunny in Adventures In Toontown

Score: +1