Lance Bass, Clay Aiken and Amanda Bearse will also guest-star in Season 3. The trio will appear in the fifth episode, which primarily focuses on a gay prom. The ripped-from-the-headlines episode is based on Constance McMillen, the Mississippi teen who challenged her school board last year after it banned her from attending the prom with her girlfriend.
Bass will play a casting director who asks Fred (Ben Feldman) to appear in an energy drink commercial; Aiken will share the screen with Grayson (Jackson Hurst) when he takes the witness stand in a mail-order bride scam case; and Married... with Children alum Bearse will play a judge.
Exclusive: Drop Dead Diva lines up Season 3 guest stars
They join previously announced guest star Wanda Sykes, who will also play a judge, and McMillen, who will make a cameo as Sykes' bailiff.
TV Squad first reported the news.
Season 3 of Drop Dead Diva premieres in June.
Kathy Griffin's Insightful and Hilarious Take on the Royal Wedding will air Friday, April 29 — the day of the ceremony — at 8/7c on TV Guide Network.