From a breathless tango to a kiss that sent fans wild, the pair crafted a sensational seven-year TV crush. The real-life best friends talk first impressions, Casablanca moments – and having hot husbands

• Lesley Manville and Peter Mullan on their heart-melting TV romance

“Dr Crane, your glockenspiel has sprung to life!”

It was a crush. An unexpected one. The psychiatrist Niles Crane (snooty, conflict-avoidant, married to a high-society wife with a fear of buffets) fell for his father’s physio, Daphne Moon (working class, Mancunian, reckons she’s a bit psychic) the moment he met her in his brother’s Seattle apartment.

A leading light of American TV comedy, directing sitcoms such as Friends, Frasier and almost every episode of Cheers

James Burrows, who has died aged 85, was one of the most influential figures in US television sitcoms for more than four decades. He was the co-creator and primary director of Cheers, one of America’s most beloved and successful sitcoms, which ran for 11 seasons between 1982 and 1993 and won 28 Primetime Emmy awards. Its final episode was second only to that of M*A*S*H as the most-watched of all time.

However, unlike producer/writers such as Nat Hiken, Norman Lear or Larry Gelbart, who had stamped their marks on previous generations, Burrows’ influence came entirely as a director. As such he was intimately involved in the creation of many shows, and enjoyed long runs on sitcoms such as the Cheers spin-off Frasier, Friends, and Will and Grace. For years he was the first-choice director of pilot episodes, used to sell programmes to the networks; he did almost 100 of them, including two versions of some, if the first produced only a lukewarm response.

Their faces may not have been given any airtime, but they remain some of the most beloved characters in television history – in shows like Friends, Frasier and This Country. Take a bow, Ugly Naked Guy …

When you think of television characters, chances are you remember the ones you can actually see. But this is a wildly unfair slight on a small but powerful minority: the characters who remain staunchly offscreen. For decades – mostly in comedies, with a handful of dramatic exceptions – these invisible workhorses have more than earned their keep, and they deserve their props. Here are the 10 best characters whose faces you have never actually clapped eyes on.