|Captain Hagen in 2379 aboard the bridge of the ISS Vanguard|
|Occupation:||Marine Officer/Commanding Officer ISS Vanguard|
|Spouse(s):|| Annette Kingsley (deceased)|
Tira'Ridala nev-Theyla (Captain's woman)
|Mother:||Deanna Jules (deceased)|
|Father:||Diad Hagen (deceased)|
Talloc was serving as a Marine Officer apart of the 277th Imperial Harbringers Battalion up until the fall of the Empire, from then on he took the remains of the 277th and waged a guriella war against the Klingon-Cardassian Alliance up until word started to spread of the Terran Rebellion's successful capture of Terok Nor ISS Vanguard (sim).
Major Hagen at the time took this as either news that Terran's had finally gained momentum, or this was a ruse by the Alliance to draw out Resistance cells an crush them. Hagen taking both into account, brought a Company of 277th Harbringers to Terok Nor to either join the growing Terran Rebellion, or to take Terok Nor for himself. For providing the Rebellion with trained military personnel (most Imperial officers were either executed on site, or resided in Alliance gulags), leader of the Rebellion, Miles O'Brien presented the soon to be completed ISS Vanguard to Hagen to cement this partnership, and as a means of seperating him from the marines he introduced to the Rebellion.