Paul Greenberg (also known as Aaron Albertus and Pierre Holloway in various shows) is a voice actor and writer who worked on The Mr. Men Show. He also worked on the show as a writer for the episode Dillydale Day.
- The Mr. Men Show: Mr. Bump (US), Mr. Quiet (US) (credited under the name "Aaron Albertus")
- Yo-Kai Watch: Bear, Mr. Johnson, Manjimutt, Additional voices (credited under the name "Pierre Holloway" for the first season).
- Like with Cheryl Chase and Joey D'Auria, Paul went under a pseudonym in the credits. Despite this, he actually kept his real name when he wrote for the show.