The actor will return from the West Coast to go on for Nathan Lane in this weekend's performances of "The Odd Couple," playing Friday, two performances Saturday and the Sunday matinee.
Lane was stricken with laryngitis earlier this week, forcing the cancellation of three performances.
Garrett played Murray the cop when the revival of the Neil Simon comedy opened last October and was Lane's understudy as the messy Oscar Madison. The actor, best known for his role on television's "Everybody Loves Raymond," left the production Jan. 1 to return to his family in California.
Garrett will star opposite Matthew Broderick, who portrays Felix Ungar in the show, which has now been extended through June 4.