Sigler will play Tina Howard, a woman suffering from fatal cardiac disease, who refuses a new heart from her brother -- a death row inmate who is to be executed in 72 hours.

Sigler's stage credits include Beauty and the Beast and Love, Loss, and What I Wore. She is best known for her work as Meadow Soprano on The Sopranos.

Drop Dead Diva stars stage veterans Brooke Elliott, Margaret Cho, Josh Stamberg, and Kate Levering.