According to ABC, the episode "All the World's a Stage" is described as such: "Justin loves his acting class, helmed by the eccentric Lena Korvinka (Carol Kane), and finds himself in an unexpected triangle with his new pals, Austin and Lily. When Betty drops by class, she's smitten with a cool young playwright, Zachary (Aaron Tveit), whom she will profile for Mode. But she challenges her own ethics when she starts dating him."

Tveit has appeared on Broadway in Next to Normal, Wicked and Hairspray. He starred in the Seattle world premiere of the musical Catch Me If You Can. The actor has also appeared on the small screen in "Gossip Girl."

Kane, also a veteran of Wicked, appeared recently Off-Broadway in Love, Loss and What I Wore. She has also appeared on Broadway in The Effect of Gamma Rays on Man-in-the-Moon Marigolds and Ring Around the Bathtub as well as Off-Broadway in The Exonerated, The Vagina Monologues, Steve Martin's WASP and Family Week. Her quirky portrayals can be seen in such films as "The Princess Bride" (opposite Billy Crystal's Miracle Max), "Scrooged" (as the Ghost of Christmas Present), "Joe Versus the Volcano" and "My Blue Heaven" as well as TV's "Taxi."

"Ugly Betty" features America Ferrara (Dog Sees God...) as the title character in a cast that also includes stage folk Vanessa Williams (Sondheim on Sondheim, Into the Woods), Michael Urie (The Temperamentals) and Becki Newton (Girl Crazy).

For more information, visit the ABC website at abc.com.