Gloria Reuben Gloria Reuben

Gloria Reuben is a Drop Dead Diva. At least, she will be when she guest-stars in the Lifetime series.

In the season finale, the Emmy and Golden Globe-nominated actress will play Professor Kathy Miller, Jane (Brooke Elliott) and Grayson's (Jackson Hurst) latest client, has learned exclusively.

Watch full episodes of Drop Dead Diva

"Professor Miller is a brilliant geneticist suffering from a terminal illness," executive producer Josh Berman says. Miller wants to be cryogenically frozen before her body and mind deteriorates as her illness progresses.

"Jane and [the] team use cutting-edge law to represent their client, only to find out that Professor Miller has one big secret she's never told anyone," says Berman.

Reuben, 46, recently starred in TNT's Raising the Bar and, previously, ER and 1-800-Missing.

Jake Pavelka to play a bachelor on Drop Dead Diva

Paula Abdul will also be dropping by the finale. The former American Idol judge will play a wedding planner who walks a major character down the aisle in a dream sequence, a series rep tells Any guesses who the bride will be?

The season finale of Drop Dead Diva airs Sunday, August 29 at 10/9c on Lifetime. You can also catch Bachelor Jake Pavelka in the penultimate episode airing August 22.