Frank Welker (born February 16, 1945), is an American voice actor. He is responsible for a broad spectrum of character voices, noises, and other vocal effects that have appeared over the last 40 years in American television shows and movies. He is particularly noted for a wide range of non-verbal vocal effects, i.e. for aliens and (non-talking) animals.

He is often referred to as a "voice acting god" in Hollywood for the sheer number of voices he has done, ranging from 1969 with his work on Scooby-Doo, to present day with his many roles in cartoons (Lilo & Stitch: The Series), films (The Cat in the Hat), and computer games (the Baldur's Gate series). In The Transformers, he voiced nearly all of the original Decepticons. With the release of the film, he took on the role of the Autobot Wheelie, and afterwards, took over the role of Galvatron from Leonard Nimoy. Having already provided the screams for Spock in Star Trek III: The Search for Spock, this marked the second time he had inherited a role from Nimoy.

Notable roles

• Scooby-Doo - Freddy Jones
• Inspector Gadget - Brain, Dr. Claw, and Mad Cat
• Dungeons & Dragons - Uni and Tiamat
• Gremlins - Mogwai and Stripe
• Transformers - Megatron, Soundwave and others
• G. I. Joe - Copperhead, Flash, Freedom, Junkyard, Polly, Short-Fuse, Timber, Torch, and Wild Bill
• The Real Ghostbusters - Ray Stantz and Slimer
• Tiny Toon Adventures - Gogo Dodo, Little Beeper, Calamity Coyote, and Furrball
• Jim Henson's Muppet Babies - Kermit, Beaker, and Skeeter
• Hudson Hawk - Bunny the dog
• Aladdin - Abu the monkey
• Animaniacs - Ralph, Runt, Flavio Hippo, Buttons, and Chicken Boo
• Species - Alien Sil's vocal effects
• Trouble with Girls - On screen appearance as Rutgers
• Tonight Show - Guest on June 5, 1979
• The Computer Wore Tennis Shoes - On screen appearance as Henry
• The Don Knotts Show - Regular Cast Member
• The Burns and Schreiber Comedy Hour - Regular Cast Member
• The_Smurfs - Clockwork Smurf, Hefty Smurf, Peewit, Poet Smurf, Puppy
• Futurama - Nibbler, both talking and non-talking versions.
• Stargate - The giant pack animal