Suggestions by @SpiderSonicPrime

Ashley Eckstein

as Shriek in Happy Birthday, Spider-Man! (Animated Special)

Jake Green

as Morbius the Living Vampire in Happy Birthday, Spider-Man! (Animated Special)

Ben Diskin

as Morbius the Living Vampire in Happy Birthday, Spider-Man! (Animated Special)

Glenn Steinbaum

as Chameleon in Happy Birthday, Spider-Man! (Animated Special)

Steve Blum

as Chameleon in Happy Birthday, Spider-Man! (Animated Special)

James Arnold Taylor

as Molten Man in Happy Birthday, Spider-Man! (Animated Special)

James Arnold Taylor

as Hydro-Man in Happy Birthday, Spider-Man! (Animated Special)

Stephen Oyoung

as Mr. Negative in Happy Birthday, Spider-Man! (Animated Special)

Steve Blum

as Beetle in Happy Birthday, Spider-Man! (Animated Special)

Fred Tatasciore

as Beetle in Happy Birthday, Spider-Man! (Animated Special)

Erica Lindbeck

as Black Cat in Happy Birthday, Spider-Man! (Animated Special)

Jason Spisak

as Scorpion in Happy Birthday, Spider-Man! (Animated Special)

Steve Blum

as Green Goblin in Happy Birthday, Spider-Man! (Animated Special)

Dee Bradley Baker

as Carnage in Happy Birthday, Spider-Man! (Animated Special)

David Agranov

as Carnage in Happy Birthday, Spider-Man! (Animated Special)

Ben Pronsky

as Venom in Happy Birthday, Spider-Man! (Animated Special)

Dave B. Mitchell

as Shocker in Happy Birthday, Spider-Man! (Animated Special)

Fred Tatasciore

as Rhino in Happy Birthday, Spider-Man! (Animated Special)

Diedrich Bader

as Kraven the Hunter in Happy Birthday, Spider-Man! (Animated Special)

Jim Pirri

as Kraven the Hunter in Happy Birthday, Spider-Man! (Animated Special)