"Goofy's Grandma" is the twenty-fourth episode of Mickey Mouse.
Mickey agrees to let Goofy's grandma stay at his house, but he soon learns that she isn't the sweet old lady she appears to be.
- Chris Diamantopoulos - Mickey Mouse
- Bill Farmer - Goofy, Grandma Goofy, Donald Duck (mimicking Goofy's voice)
- Aaron Springer
- Due to the plot of this episode, Donald is voiced by Bill Farmer and has no other spoken lines besides calling Mickey's name in Goofy's voice.
- This is the first episode of this TV series to use the big whistle zing out sound effect (originally from various Hanna-Barbera cartoons), even though it was overlapped by siren whistle sound effect used on the Nickelodeon show The Fairly OddParents. This happens when Mickey jumps off Grandma Goofy as he thinks the "real" Goofy is right by them.
- Bill Farmer won a 2015 Annie Award for Outstanding Achievement, Voice Acting in an Animated TV/Broadcast Production for his performance as Goofy and Grandma for this episode.
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