She replaced Lieutenant Worf at the tactical station when he joined Captain Picard and beamed down to Delta Rana IV (TNG: "The Survivors") and again when Worf was part of the away team which beamed over to the Promellian battle cruiser. (TNG: "Booby Trap")
Bailey served at the tactical station on the bridge of the Enterprise-D in 2366. She was replaced by Worf shortly before Kyril Finn and an Ansata terrorist beamed directly on the bridge and abducted Captain Picard. (TNG: "The High Ground")
She also worked as relief tactical officer when Worf cared for his son Alexander after K'Ehleyr brought the boy aboard. Later, Worf was ready to replace her but was called into the Captain's ready room and Bailey remained at the station. (TNG: "Reunion")
A holographic duplicate of Bailey was part of an illusion created by the alien Barash on Alpha Onias III. In this illusory 2383, Bailey served as tactical officer on the bridge when Ambassador Tomalak, Admiral Picard and Deanna Troi visited the ship and its captain, William T. Riker. (TNG: "Future Imperfect")
In 2367, when Admiral Norah Satie was aboard the ship, she was ordered by security chief Worf to track together with Crewman Marcus Simon Tarses' movements for the previous five years when he was on trial. Later she manned the tactical station on the bridge. (TNG: "The Drumhead")
Ensign Bailey replaced Worf at the tactical station when the Klingon escorted Ambassador Odan, possessing Commander Riker's body, to his quarters (TNG: "The Host") and when Worf led the investigations regarding the replicated Federation weapons on Krios Prime. (TNG: "The Mind's Eye")
Her name is from the script of the fourth season episode "The Drumhead". On the call sheet for the episode "Galaxy's Child" and "The Drumhead" she is listed under full last name, Winwood.
- "The Survivors"
- "Who Watches The Watchers"
- "Booby Trap"
- "The Enemy"
- "The Price"
- "The Defector"
- "The High Ground"
- "Sins of the Father"
- "The Best of Both Worlds, Part II"
- "Future Imperfect"
- "Data's Day"
- "Galaxy's Child"
- "Identity Crisis"
- "The Drumhead"
- "The Host"
- "The Mind's Eye"
- "Birthright, Part I"