Derek Went to Trenton Thunder With Tommy's Dad and Julie
- His first appearance was in the Barney and the Backyard gang video "Waiting for santa" (1990).
- He is on the T-ball team
- He has a pet goldfish named Angel
- He is interested in space.
- His final appearance was in the episode video Let's Pretend with Barney (1997).
- Derek appeared in all four of Landon's appearances.