- "You hang on. You might feel a bit sleepy."
- ―Etain Tur-Mukan comforting Fi in his last moments
Fi was a clone trooper who served in the 41st Elite Corps and the Improcco Company during the Clone Wars. In 21 BBY, he fought in a skirmish on Dinlo until he was mortally wounded during the firefight. Before his death, Fi was comforted by Jedi General Etain Tur-Mukan while aboard a modified LAAT/c gunship. Fi shortly succumbed from his wounds and died. Fi's death hit Etain hard because he had the same name as Fi the clone commando, squadmate of Etain's boyfriend, Darman.
- Republic Commando: Triple Zero (First appearance)