History
Derek was a mouse who was experimented on by U.S. Hulk Operations. When Carl Creel was given the Hulk Plug-In, his gamma-absorbing powers were tested on Derek, who died as a result.[1]
Trivia
- According to the letters page of Immortal Hulk #49, Derek "did indeed come through a teensy weensy Green Door and scuttled away to do Hulk Mouse stuff off-panel."