Here’s a concept! These voices can be found on AI Uberduck. PaRappa: Jaleel White PJ Berri: Jim Cummings Boxy Boy: R.J. Williams Sunny Funny: Emma Jacobs Katy Kat: Sally Struthers Matt: Roger Craig Smith MC King-Kong Mushi: Ed Gilbert (R.I.P.) Chop-Chop Master Onion: Tony Jay (R.I.P.) All these voices are very different than the ones in the game.
I googled both and didn’t see any names in common. Rodney Greenblat was only credited for working on PaRappa and um jammer Lammy afaik. Pls correct me if I’m wrong.