- Bob's last name is revealed in Beast Halloween Ever, where Mikey says "Off to the Penski's house!"
- The episode "Happy Beastgiving" reveals that Bob lives in the same house with Ken.
- However, they are not brothers because in the episode "Mikey Is a Beast", Bob said "I'm scared because Ken is going away with his mother today," instead of "our mother."
- German: René Dawn-Claude
- Greek: Νίκος Παπαδόπουλος / Nikos Papadopoulos
- Serbian: Марко Марковић / Marko Marković