Heusinger will be part of a cast that also includes Lisa Edelstein and Necar Zadegan.
Bravo's first scripted series, from writer-producer Marti Noxon and NBCUniversal, centers on "Abby (Lisa Edelstein), a self-help book author who hides the fact that she’s separated from her husband as she starts to navigate her life as a single woman in her early 40s in Los Angeles," according to Deadline.
Heusinger has been cast in the role of Max, Abby's brother and closest friend.
An air date for the 13-episode, hour-long series has yet to be announced.