Dr. Frasier Winslow Crane is a fictional character who is both a supporting character on the American television sitcom Cheers and the titular protagonist of its spin-off Frasier and the latter’s 2023 sequel. In all three series, he is portrayed by Kelsey Grammer. The character debuted in the Cheers third-season premiere, "Rebound " (1984), as Diane Chambers's love interest, part of the Sam and Diane story arc. Intended to appear for only a few episodes, Grammer's performance in the role was praised by producers, prompting them to expand his role and increase his prominence. Later in Cheers, Frasier marries Lilith Sternin and has a son, Frederick. After Cheers ended, the character moved to a spin-off series, Frasier, through which the span of his overall television appearances totals 20 years. In the spin-off, Frasier moves back to his birthplace, Seattle, after his divorce from Lilith, who retained custody of Frederick in Boston, and is reunited with a newly created family: his estranged father, Martin, and brother, Niles.

Cheers is an American sitcom television series that aired on NBC from September 30, 1982, to May 20, 1993, with a total of 275 episodes across eleven seasons. The show was produced by Charles/Burrows/Charles Productions in association with Paramount Network Television and was created by the team of James Burrows and Glen and Les Charles. The show is set in the titular bar in Boston, where a group of locals meet to drink, relax, socialize, and escape from their day to day issues.