Gustin, who also appeared as Baby John in the Broadway national tour of West Side Story, will appear on the fifth season of "90210" as Campbell, who is described as a "charming and good-looking college student from a wealthy and privileged background."
Other upcoming guest stars on "90210" include Ryan Lochte, Nelly Furtado, Carly Rae Jepsen and Taio Cruz.
Gustin, who has also been seen on TV in "A Mother's Nightmare," "CSI: Miami" and "A Haunting," is slated to return to Fox's "Glee" this season.
