Surprising Behind-the-Scenes Stories from the Set of Cheers

When the cast was asked who used the most profanity on the Cheers set, they didn’t hesitate — the unanimous answer was Kirstie Alley. Despite playing the polished, ambitious Rebecca Howe, Alley was famously unfiltered behind the scenes, letting loose with colorful language that cracked everyone up.

Her sharp wit and no-nonsense personality made her the cast member most likely to drop a well-timed curse between takes. It became part of her off-camera charm, a funny contrast to Rebecca’s often uptight on-screen energy.