Tiberius Kaiser

Imperator Kaiser I (born; Tiberius Kaiser) is the first and current Imperator of the Galactic Imperium, reigning from the founding of the Imperium on 16th January 2193 onwards. 
A human male with a reputation for his coldness and effectiveness, Kaiser established himself as a prominent figure during the Second Great War. After the sudden death of Fleet Admiral Williams and Admiral Grace Hale, Kaiser became the new Commander-in-Chief of the Galactic Union military. 
Following the siege of Buran, Fleet Admiral Kaiser orchestrated a coup against the Galactic Union government. Seizing control of the Union, Kaiser and the military quickly turned the tide of the war. He established an effective military dictatorship, and with the finances of the Union now under his control, he was able to fund operations that would turn the tide of the war. After a daring mission to Zultan Prime led by Fleet Captain Harrison Steele that resulted in Zultan Prime being decimated by anti-matter explosions, Kaiser secured the surrender of the now collapsing remnants of the Zultan Empire.
Following the end of the war, Kaiser deployed the Union military to immediately declare martial law. He recanted on his promise to restore democracy and established a dictatorship led by himself. He established a Roman-esque super state that encompassed nearly all galactic territory in the western arm of Convergence, the Galactic Imperium.