AD-3, known by her friends as Aidee, was a protocol droid who served Jedi Master Kelleran Beq. Alongside the astromech droid LX-R5, she accompanied him when he supervised Padawans' Jedi Trials.
AD-3 is a character created for the StarWarsKids.com game show Star Wars: Jedi Temple Challenge, voiced by Mary Holland with life performance provided by Upright Citizens Brigade Theatre veteran, artist and droid builder Gordon Tarpley providing the character's life performance. Holland and Tarpley worked together to synchronize Tarpley's live performance with Holland's voice performance. The short stories told by AD-3 in each episode were written by the author Cavan Scott.
During an interview with The Star Wars Show host Anthony Carboni on May 27, 2020, Holland described her character as providing her co-star Ahmed Best's character Master Kelleran Beq with "someone who isn't so in awe of what they do that they lose all sense of reality and aren't able to consider other perspectives." Best also described AD-3 as a friend to Master Beq that could be honest with him "without having any reverential fear or shyness." Showrunners and the cast took care to ensure that AD-3 was not a "humble servant" but rather an equal partner to Kelleran Beq.
According to Jedi Temple Challenges co-creator , AD-3's nickname mimicked "Aidee," a feminine name to match her voice actor. AD-3's ankles have the initials "GT" and "MH," representing her designer and performer Gordon Tarpley and voice actor Mary Holland respectively.