Only Game of Thrones has won more Emmy Awards than Frasier. Think about that for a moment.

The show is renowned for its unseen guest stars which would phone-in on Frasier’s talk radio show. Ben Stiller, Macaulay Caulkin and Laura Linney were among memorable celebrity callers. The latter of whom became a major character in the shows final season. The finale titled Goodnight, Seattle also featured a star-studded line-up including Robbie Coltrane and Richard E. Grant as Daphne's brothers.

With rumours rife of a revival for the sitcom, all fans would no doubt love to see some of these characters come back into the show, especially as they’re now all famous in their own right.

Many one-episode guest stars included memorable appearances from the Cheers cast such as Ted Danson or Woody Harrelson, but there are some that are not as easily remembered.