She appeared briefly as a guidance counselor in the comedy film Legally Blonde and played Coach's daughter, Lisa Pantusso, on Cheers.

[7] Upon returning to New York, Beasley took drama classes under Lee Strasberg during the day while working nights as a waitress to make ends meet.

[7] Early in her career, Beasley appeared as Coach Pantusso's daughter on Cheers[9] and played the role of Latka Gravas' one night stand on the sitcom Taxi.

[13] For her work on Moonlighting, Beasley received two Primetime Emmy Award nominations for Outstanding Supporting Actress in a Drama Series in 1986 and 1987.

[16] She was a friend of Susan Dey's character in the television film Lies and Lullabies[16] and acted in the 1993 miniseries The Tommyknockers, based on the novel by Stephen King.

[20] On Bored to Death, she played the role of Florence, the mother of Jonathan Ames (Jason Schwartzman),[21] and appeared on the YouTube Premium series Champaign ILL.[22] Beasley has also worked as a voice actress.

Dindon in the Tony Award-winning revival of La Cage aux Folles alongside Kelsey Grammer and Douglas Hodge on September 14, 2010.

[21] In the spring of 2014, Beasley portrayed Doris in the musical Damn Yankees with Lora Lee Gayer at the Goodspeed Opera House in East Haddam, Connecticut.