Diego, ex-surgeon and blast miner, is the primary protagonist of the non-canon spinoff game, T.T.F.N: Save Solvice. Diego also appears in Level 3 (which itself reappears as Antarctica) of T.T.F.N. 2, where he tells Solvice that he wants to be a blast miner when he grows up. By 2013, 16 years since T.T.F.N. 2, Diego has dyed his hair green and cut his throat out to prevent himself from making noise to alert enemies. Diego is obsessed with finding and resurrecting Solvice.