Graham, 47, will guest star as Gaby, the ex-wife of Matthew Perry's Oscar Madison in the reboot based off of Neil Simon's 1965 Broadway play and the subsequent TV series, which ran from 1970 to 1975. The characters have a "deep connection and affection between them" despite getting on each other's nerves.
The Gilmore Girls alum and Perry, 45, briefly dated in 2003, and have remained friendly. The duo presented together at the 2010 Emmy Awards, and Graham has appeared on two of Perry's TV shows in the past: Go On and Studio 60 on the Sunset Strip.
Graham's new gig will most likely be her first post-Parenthood. The sixth and final season of the NBC family drama is currently airing. Graham has been dating her on-screen brother Peter Krause since meeting on set in 2010.
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