: Introduces Duncan Moore ; Oliver begins his tenure as Staff Sergeant.
: Undergoes significant personal growth, exploring a relationship with forensic pathologist Holly Stewart and facing a life-altering tragedy that leads her toward a "bold" decision regarding adoption. Rookie Blue - Season 5
: His character takes a darker turn as he spirals into a drug addiction that jeopardizes his career and relationship with the team. : Introduces Duncan Moore ; Oliver begins his