Kelsey Grammer has joined Twitter, but not for the usual reasons. Instead, Kelsey Grammer wants to educate Twitters masses on the rules and intricacies of English grammar. It has come to my attention that the fine people of Twitter have an egregious grammar problem, Grammer wrote. For 20 years, Grammer played Americas favorite on-screen shrink with his portrayal of Dr. Frasier Crane — first on Cheers, and then via the spinoff series Frasier.