Derrin Weller is an NPC in the game Star Wars: The Old Republic
When playing as a Jedi Knight, Derrin Weller greets you as you arrive on Tython
Derrin sends you on your first mission, Attack of the Flesh Raiders
He later contacts you that he was shot in the leg by a Flesh Raider while he was rescuing some Padawans and is being evacuated to a medcenter