Yes, even MORE random 21 Jump Street stuff!
I was bored, and decided to check out the guest stars of the 21JS episode "Wooly Bullies". So I click on the guy who played kid!Penhall.
...he did the voice of Dink in 'Dink, the Little Dinosaur'. Aka, the series I ADORED as a child and still have tapes of somewhere.
Too bad I can't find who played kid!Booker. Heh.