In the year 3 BBY, a human female pilot known as Dicer served as Phoenix Six (callsign). Serving as a lieutenant within Phoenix Cell, a fleet primarily consisting of A-wing starfighters, she operated under the leadership of Jun Sato. While stationed at Chopper Base, which had recently been established on the world of Atollon, Dicer received the assignment to deploy a sensor beacon at the base's eastern perimeter to safeguard against potential intruders. Subsequent to the beacon's placement, a krykna, a spider-esque creature indigenous to Atollon, seized Dicer, and it is believed she was consumed. Sabine Wren was informed of Dicer's vanishing, prompting her to initiate a search alongside Rex, a clone trooper. Upon reaching the designated location, they discovered only her A-wing and helmet.
The animated television show Star Wars Rebels featured Dicer in "The Mystery of Chopper Base," an episode from its second season. Ashley Eckstein, the voice actress responsible for portraying former Jedi Ahsoka Tano within the same series, provided her voice. Although the episode's end credits list her name as "Deiser," she is known as Dicer. The mobile game Star Wars: Starfighter Missions on the Google Play Store identified Dicer as Mia Dicer, a detail absent from the game itself.