Dagool was a Brakiri lowlife thug, petty thief and a member of the Chadi, as indicated by his facial tattoos. During his time on Babylon 5 he often resorted to petty theft. Security Chief Michael Garibaldi personally arrested him on at least three different occasions in 2258, the last of which almost turned violent. Bitter and hateful, Dagool seized an opportunity for revenge when Garibaldi was framed for conspiracy and forced to go on the run in Downbelow. Dagool cornered him, along with two Drazi, and proceeded to savagely attack Garibaldi until Commander Jeffrey Sinclair arrived and saved Garibaldi.