How many movies have Frank Welker and Jess Harnell acted in together?

They have worked on 21 movies together! Their first movie together was DuckTales: The Movie - Treasure of the Lost Lamp (1990) while their highest rated movie together was What's New, Scooby-Doo? Vol. 7: Ghosts on the Go! (2006). They have not worked together since The Grinch (2018). They are most known for their animation films together.

Role
Max / Fred (voice)
Role
Additional Voices (voice)
Role
Scooby-Doo / Fred Jones (voice)
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Human Scooby-Doo / Guard (voice)
Role
Shockwave / Soundwave / Barricade (voice)
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Ironhide (voice)
Role
Bullseye / Buster / The Monkey / Pigeon (voice) (uncredited)
Role
Additional Voices (voice)
Role
Soundwave / Devastator / Reedman / Grindor (voice)
Role
Ironhide (voice)
Role
Animals' vocal effects (voice) (uncredited)
Role
Announcer / Royal Guard #2 (voice)
Role
Frank the Combine (voice) (uncredited)
Role
Additional Voices (voice)
Role
Fred Jones / Scooby-Doo / The Centaur (voice)
Role
Lue / Shane Flinty / Constable (voice)
Role
Spike (voice)
Role
Major Buzz Blister / Martian General / Worker #3 (voice)
Role
Additional Voices (voice)
Role
Major General (voice) (uncredited)
Role
Goddard (voice)
Role
Meldar Prime (singing voice)
Role
Creature Voices (voice)
Role
Creature Voices (voice)
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Reggie (voice)
Role
Buster (singing voice) (uncredited)
Role
Various (voice)
Role
Wakko Warner (voice)
Role
Bullseye / Buster (voice) ( uncredited)
Role
Man #2 (voice)
Role
Runt / Scout / Mr. Squeak (voice)
Role
Wakko Warner / Death (voice)
Role
Abu / Rajah / Fazahl (voice)
Role
Additional Voice Talents (voice)
Role
Gogo Dodo / Furrball / Bill Clinton / Ross Perot / Additional Voices (voice)
Role
Michael Molten-Lava / Rank / Additional Voices (voice)