Dull 'Reactor' Bookworm was a member of The Exterminators of Ratchet: Deadlocked.
Dull Bookworm was a high school math teacher and wanted give kids the gift of learning. However, he didn't get any love interests.
Reactor confronts Ratchet at the final match of the Crusader Tournament.
- "But, baby! I'm giving these kids the gift of learning!"
- "I'm going to put you in a world of hurt!"