EXCLUSIVE: Briga Heelan is making a return to NBC/Warner Bros.’s midseason series Undateable, re-joining the Bill Lawrence comedy as a recurring. She will reprise the role of Nicki she played in the pilot as a guest star. The bromantic comedy centers on Danny (Chris D’Elia) and Justin (Brent Morin) — two very different guys who are bonded by their common inability to attract women. Heelan first came into the Lawrence/Warner Bros. family in March when she was cast as the female lead in the TBS comedy pilot Ground Floor. A month later, she was brought in as a last-minute replacement of originally cast series regular Aly Michalka in the Undateable pilot. Because of her commitment to Ground Floor, Heelan did the NBC pilot as a guest star. Then on May 10, within a few hours both Ground Floor and Undateable were picked up to series. Lawrence wanted Heelan for both shows, and the studio tried to make things work but ultimately the verdict was that the dates could not be worked out, and Megan Park was cast in the Nicki role as a new regular. But meanwhile, the schedules for Ground Floor and Undateable were synched up enough for Heelan to be able to do the NBC comedy on a recurring basis without interfering with her starring duties on the TBS sitcom. (Both comedies are multi-camera, which require fewer production days than single-camera shows.) For now Heelan, repped by Gersh and Thruline, has been booked for three episodes on Undateable playing the warm-hearted but tough Nicki, the waitress in Justin’s (Morin) bar who feels protective of all the guys who hang out there but doesn’t know that Justin has had a sweet spot for her since the day they met. She replaces Park.