Proteus

First Appearance

Gargoyles (1994)

Other Appearances

Gargoyles: The Goliath Chronicles (1996)

Voice

Roddy McDowall

The Weasels, from The Wind in the Willows

First Appearance

The Adventures of Ichabod and Mr. Toad (1949)

Origin
The Wind in the Willows book by Kenneth Grahame

Voices

Leslie Denison
Edmond Stevens

Buster

First Appearance

Wander Over Yonder (2013)

Bill Cipher

First Appearance

Gravity Falls (2012)

Voice

Alex Hirsch

Fat Cat

First Appearance

Chip 'n' Dale: Rescue Rangers (1989)

Voice

Jim Cummings

The Hydra

First Appearance

Hercules (1997)

Other Appearances

Hercules TV Series (1998)

Origin

Greek myth

Original Animators

Oskar Urretabizkaia

Howard E. Baker

Raffaella Filipponi

Bill Fletcher

Steven Clay Hunter

Mike "Moe" Merell

Bill E. MillerMark Empey

Erica Cassetti

Peter Farson

Kee-Suk "Ken" Hahn

Shyh-Chyuan Huang

Sergi Sagas

Lisa Suzuki

Timothy Tompkins

Paddywhack

First Appearance

Darkwing Duck (1991)

Voice

Phil Hartman

Malsinger

First Appearance

Adventures of the Gummi Bears (1985)

Voice

Michael Rye

NOS-4-A2

 First Appearance

Buzz Lightyear of Star Command (2000)

Voice

Craig Ferguson

Mr. Doodles

First Appearance

Bonkers (1993)

Voice

Charlie Adler

Abis Mal

First Appearance

The Return of Jafar (1994)

Other Appearances
 Aladdin - TV Series (1994)

Voice

Jason Alexander

Toucan Dan

First Appearance

Timon & Pumbaa (1995)

Voice
Jeff Bennett

The Bear, from The Pointer

First Appearance

The Pointer(1939)

Crock

First Appearance

Wuzzles (1985)

Voice
Alan Oppenheimer

Dr. Heinz Doofenshmirtz

 

First Appearance

Phineas and Ferb (2007)

Other Appearances
 Take Two with Phineas and Ferb (2010)
Phineas and Ferb The Movie: Across the 2nd Dimension (2011)
Doofenshmirtz's Daily Dirt (2013)

Voice

Dan Povenmire

Forte

 First Appearance

Beauty and the Beast: The Enchanted Christmas (1997)

 

Voice

Tim Curry 

Donald's Devil

First Appearance

Donald's Better Self (1938)

Other Appearances

Donald's Decision (1942)

Voice

Don Brodie

Ebb and Flo

First Appearance

The Little Mermaid - TV Series (1992)

Voices
Ebb
Jim Cummings
Flo
Kath Soucie

Lahwhinie

First Appearance

Chip 'n' Dale: Rescue Rangers (1989)

Voice

Deborah Walley

Hades

First Appearance

Hercules (1997)

Other Appearances

Hercules TV Series (1998)
Hercules: Zero to Hero (1999)
House of Mouse (2001)
Mickey's House of Villains (2001)
Mickey's Magical Christmas: Snowed In at the House of Mouse (2001)

Origin
Greek myth

Voice

James Woods
Rob Paulsen (singing)

Original Animators

Nik Ranieri

James Baker

Daniel Bond

Bolhem Bouchiba

Roger Chiasson

Nicole de Bellefroid

Eric Delbecq

Neil Goldstein

Juanjo Guarnido

David Kuhn

Denise Meehan

James Oliff

Sergio Pablos

Anne Pellerin

Michael Polvani

Runaway Brain Mickey

First Appearance

Runaway Brain (1995)

Voice

Jim Cummings

Tublat

First Appearance

The Legend of Tarzan (2001)

Origin
Tarzan of the Apes book by Edgar Rice Burroughs

Voice

Keith David

Prince Hugo

First Appearance

Sofia the First (2013)

Voice

Colin Ford

Robot Butler, from Modern Inventions

First Appearance

Modern Inventions (1937)

Voice

Billy Bletcher

The Gnomes

First Appearance

Gravity Falls (2012)

Voices

Alex Hirsch

Raja

First Appearance

Goliath II (1960)

Voice
Mel Blanc 

Ned and Zed

First Appearance

Planes (2013)

Voices

Gabriel Iglesias

Flotsam and Jetsam

First Appearance

The Little Mermaid (1989)

Other Appearances

The Little Mermaid - TV Series (1992)

Voices

Paddi Edwards

Merlock the Magician

First Appearance

DuckTales the Movie: Treasures of the Lost Lamp (1990)

Voice

Christopher Lloyd

Lilith DuPrave

First Appearance

Bonkers (1993)

Voice

Eileen Brennan

The Sea Witch

 First Appearance

Jake and the Never Land Pirates (2011)

Voice

Carol Kane

Note: The Sea Witch is the evil personality of Misty, the Wonderful Witch, voiced by Tiffani Thiessen and Laura Dickinson