The Oscar-nominated actor, 48, will guest-star in an upcoming episode as Phil's new business, Tad. Phil (Ty Burrell) is extremely impressed by Tad, described as a successful and athletic real estate broker, but his wife Claire (Julie Bowen) isn't so smitten.
Kinnear's episode will air sometime next year.
Kinnear, best known for films the films As Good As It Gets and Little Miss Sunshine, got his start on the small screen as the first host of E!'s Talk Soup and also guest-starred on Friends in 2003. He earned an Emmy nomination earlier this year for his portrayal of John F. Kennedy in the Reelz miniseries The Kennedys.