How many movies have Bret Marnell and Frank Welker collaborated on?

They have worked on 2 movies together! Their first movie together was The Ant Bully (2006) while their highest rated movie together was Smurfs: The Lost Village (2017). They have not worked together since Smurfs: The Lost Village (2017).

Smurfs: The Lost Village (2017)

Crew
Editor
Role
Azrael (voice)
Role
Snappy Bug / Handy Smurf (voice)

The Ant Bully (2006)

Crew
Associate Editor
Role
Spindle / Frog / Caterpillar (voice)