Waleran held the rank of Senior Lieutenant while serving on the Interrogator.
Waleran began his career as a Lieutenant and com-scan officer on an Imperial II-class Star Destroyer. He was a devoted family man, being a husband and father.
His open and frequent discussions about his family kept him from being selected as a military aide for Captain Jovan Vharing. Vharing, despite recognizing Waleran's loyalty and competence as a leader, ultimately grew to dislike Waleran's talkative nature.
Following Leeds' error during the attack of Qlothos, Vharing considered Waleran for the aide position. He planned to mentor Waleran but was ultimately executed by Antinnis Tremayne before he could promote him.
Subsequently, Waleran was promoted to Senior Lieutenant, replacing Leeds on the ship, where he then commanded his subordinates.