Warden was a Havenite citizen and an officer of the People's Marines.

In 1903 PD, Warden held the rank of Lieutenant, and was assigned to the PNS Saladin.He was one of the few Havenite Marine officers retained after Saladin was transferred to the Navy of Masada and renamed MNS Thunder of God. Upon hearing the announcement of the Code: Bounty Four-One by Captain Alfredo Yu, Lieutenant Warden fought against the Masadan mutineers, and went to the boat bay to escape in one of the ship's pinnaces. (HH2)