Charles Michael "Charlie" Adler is an American voice actor and voice director who is best known for voicing Ickis in the Nickelodeon series Aaahh!!! Real Monsters, Buster Bunny in the Warner Bros. animated series Tiny Toon Adventures, Ed and Bev Bighead in Rocko's Modern Life, Professor Monkey-For-A-Head in Earthworm Jim, Snively in the SatAM version of Sonic the Hedgehog, Doctor Doom in The Super Hero Squad Show, the titular characters Cow and Chicken, along with the Red Guy in the Cartoon Network series Cow and Chicken and I Am Weasel, and Starscream in the Transformers film series.
For Disney, he provided voice direction for The Buzz on Maggie. He also cast and voice directed nine episodes of Season 2 of The Emperor's New School (the rest were by Ginny McSwain and Jamie Thomason), almost all episodes of The Replacements (the others were by Jack Thomas), and the pilot episode of Phineas and Ferb, along with Jamie Thomason.
Additionally, Adler had multiple voice roles in Disney films and television shows that are listed below.
- Filler Brushbill in the DuckTales episode "Much Ado About Scrooge"
- The Weasel guards in The Prince and the Pauper
- Mad Dog in TaleSpin, along with Howard Huge in "Bearly Alive"
- Major Trenchrot in the Darkwing Duck episode "Apes of Wrath", Andy Ape in "Film Flam", the newscaster in "Fraudcast News", and Mr. Mikey in "Malice's Restaurant"
- Gazeem in Aladdin
- The street theater teacher in the Goof Troop episode "Close Encounters of the Weird Mime", a ghost in "Hallow-Weenies", Igor in "Frankengoof", and the magician's hat in "Talent to the Max"
- The Seahorse Herald in The Little Mermaid TV series
- Commander Shabalaa in The Little Mermaid episode "The Great Sebastian"
- The police light in Bonkers, along with Tiny in "The Hamsterguest" and Charles Quibble in "The Final Review"
- Mechanicles in the Aladdin TV series
- Teds, Rabbit, Irwin, Enos the Bat, a Cook, a veterinarian, Mr. Buttons, and Miss Skunk-Lady in Timon & Pumbaa
- Smelly Deputy Chafe, Granny Pearl, and miscellaneous voices in The Shnookums and Meat Funny Cartoon Show.
- Ned the Baboon in Jungle Cubs
- Prince Gaylord and a hermit in Quack Pack
- Dr. Droid (a.k.a. Otto Maton) in the Mighty Ducks TV series
- Molly in Dave the Barbarian
- Mr. Whiskers in Brandy & Mr. Whiskers
- Prime Minister Ricobo in The Replacements
- A keeper in The Emperor's New School episode "Guaka Rules"
- The Report Card in the Wizards of Waverly Place episode "Report Card"
- MODOK in Phineas and Ferb: Mission Marvel
- Mjomba in The Lion Guard episode "Too Many Termites"
- Priest in The Little Mermaid
- Additional voices in The Rescuers Down Under
- Arab in DuckTales the Movie: Treasure of the Lost Lamp