'The Simpsons' season 28 episode 7 'Havana Wild Weekend' guest stars Stacy Keach and Deb Lacusta

"The Simpsons" family returns to Cuba on season 28 episode 7 with guest stars Stacy Keach and Deb Lacusta. Keach voices Duff Stadium owner H.K. Duff, while Deb Lacusta voices Isabella.

In the episode, Duff is also the CEO of the Duff Brewery and president of Springfield Isotopes. He has appeared on episodes including "Hungry, Hungry Homer," "Old Yeller-Belly," "Marge and Homer Turn a Couple Play" and "Waiting for Duffman."

Lacusta has written several episodes of "The Simpsons" including "Days of Wine and D'oh'ses," "Gump Roast," "The Ziff Who Came to Dinner," "Kiss Kiss Bang Bangalore," "The Fight Before Christmas," "A Midsummer's Nice Dreams" and "The Ten Per-Cent Solution." She has co-written several episodes of the show with her husband Dan Castellaneta. She has also written the all-new episode of "The Simpsons" titled "Havana Wild Weekend" where she will voice Isabella. Fox network does not provide any information about Isabella.

The new episode brings the Simpsons family to Cuba and the streets of Havana as they find cheap medical care for Grampa because the Retirement Castle and the V.A. Hospital can't solve Grampa's health issues.

Keach is an American actor and narrator notable for his work on CNBC's "American Greed," which focuses on biggest corporate and white collar crimes.

He started his TV appearance in 1958 with Barbara Eden and Mary Anders in a romantic comedy titled "How to Marry a Millionaire." He also played Barabbas in a miniseries titled "Jesus of Nazareth" in 1977. In the "Lost Soul" episode of the "Batman Beyond" TV series, he voiced Robert Vance. He also had a recurring role in Prison Break as Warden Henry Pope.​

"The Simpsons" season 28 episode 7 "Havana Wild Weekend" airs in the US on Sunday at 8 p.m. It airs in Australia on Thursday on Eleven.