Amber Tamblyn's publicist says the U.S. actress is engaged to comedian David Cross.
They have been dating for about three years.
Tamblyn, 28, starred on TV's "General Hospital," "Joan of Arcadia" and "House," as well as "The Sisterhood of the Traveling Pants" films.
Cross, 47, is best known for his work on the small-screen comedies "Arrested Development" and "The Increasingly Poor Decisions of Todd Margaret."