He was a Nemoidian from a wealthy family.that were known to be treacherous. He was recruited into the Federation and became a part of Gunray's inner circle.
Sometime later, he was promoted to become captain of the Trade Federation. He had negotitians with two Jedis Obi Wan Kenobi but it is actually trap. The jedis managed to escape and Dofine prepares to invade Naboo.
During the battle over Naboo, Dofine oversees the Federation forces. He was killed when Anakin Skywalker destroys the reactor of the Droid Control Ship.