Kelsey Grammer stepped out in London on Wednesday afternoon clutching a script with 'Frasier' emblazoned across the front of it.

The American actor - who played the titular Dr Frasier Crane in the sitcom, and beforehand in Cheers - held the pages close to him as he made his way to rehearsals for Man Of La Mancha, the musical he will star in when it opens at the London Coliseum later this month.

But the star, 64, seemed to have more than one project on his mind, clearly bringing the script along with him to work on in his breaks.

He's listening (again!): Kelsey Grammer stepped out in London on Wednesday afternoon clutching a script with 'Frasier' emblazoned across the front of it

The front of the file featured the 'Frasier' logo, used at the start of each episode. Next to this was the word GRAMMNET - the name of Grammer's production company, known for producing various shows featuring the thespian over the years.

The appearance of the script appears to not only confirm that the show is set for a comeback, but that at least one new episode has been written - the first since the series ended in 2004.

The last show - titled Goodnight, Seattle - saw the sitcom seemingly end for good.

But rumblings of the iconic comedy returning to screens have been rife over the past year or so, since the likes of Will & Grace and Roseanne [later re-branded as The Conners] were resurrected successfully.

In writing! The front of the file featured the famous 'Frasier' logo, used at the start of each episode. Next to this was the word GRAMMNET - the name of Grammer's production company, known for producing various shows featuring Grammer over the years

Confirmed? The appearance of the script appears to not only confirm that the show is set for a comeback, but that at least one new episode has been written - the first since the series ended in 2004

Grammer all but confirmed that scripts were being written in an interview last month, hinting at the plot that's in the pipeline.

Speaking to Metro, the actor - who played the titular character from 1984 [in Cheers] until 2004 [when spin-off series Frasier came to a close] - teased that the reboot would mirror the storyline that Frasier was based around when it first aired in 1993.

This centered around Frasier's relationship with his father, Martin Crane, played by the late John Mahoney.

‘Whether he’s got six children and a wife in the islands somewhere, he needs to come back to probably resolve things with his son Frederick, which mirrors the show in the first place,’ Grammer said.

'Baby, I hear reboots are calling!' The American actor - who played the titular Dr Frasier Crane in the sitcom - held the pages close to him as he made his way to rehearsals for Man Of La Mancha, the musical he will star in when it opens at the London Coliseum later this month

In the works: Grammer teased for the first time the potential plot for the in-the-works Frasier reboot last month

Homage: The American actor teased that the reboot will mirror the storyline that Frasier was based around when it first aired in 1993; namely Frasier's relationship with his father, Martin Crane, played by the late John Mahoney

He also said on This Morning recently that he hoped they would bring it back, but 'we're sort of shopping for the right idea'.

He said: 'Will & Grace have done a continuation now, and it's basically the next day from when they were last on air, and I don’t think that’s appropriate for Frasier. We hope somebody wants to write the cheque, but no one has come up to us yet.’

It seems the cheque may have now been written, however.

The series opened with Frasier moving to a plush bachelor pad in his native Seattle, having lived in Boston during his character's time on Cheers.

In the pilot - The Good Son - Frasier was advised that his dad, an ex-policeman with a hip injury after being shot on the job - could not live alone anymore.

Could it be? Grammer - who played the titular character from 1984 [in Cheers] until 2004 [when spin-off series Frasier came to a close] - all but confirmed that scripts were being written, hinting at the plot that's in the pipeline

Reboot: 'I’d want everybody back, if they want to come back. They seem to,' said Grammer

The premise for the show was set up with Martin, his dog Eddie and his ugly armchair being moved into Frasier's apartment to stay permanently.

This paved the way for Frasier to hire Daphne Moon [Jane Leeves], a physical therapist-cum-housekeeper, whom Frasier's brother Niles [David Hyde Pierce] became obsessed with and, eventually, married.

Mahoney, however, died last year; and Grammer explained that this would be featured as a storyline if the reboot took place.

Back to the start? ‘Whether he’s got six children and a wife in the islands somewhere, he needs to come back to probably resolve things with his son Frederick, which mirrors the show in the first place,’ Grammer said

Mix and match: Frederick was portrayed by Christopher and Kevin Graves in Cheers, and Luke Tarsitano for his first Frasier appearance, later swapped for Trevor Einhorn [pictured] until the show ended

Lovers: The premise for the show paved the way for Frasier to hire Daphne Moon [Jane Leeves], a physical therapist-cum-housekeeper, whom Frasier's brother Niles [David Hyde Pierce] became obsessed with and, eventually, married

'We would need to deal with that within the storytelling,' he explained. 'But I’d want everybody back, if they want to come back. They seem to.'

At one point, it was rumoured the show would not be set in Seattle after Frasier was seen relocating to Chicago in the original series finale in 2004. As this would appear to cancel out the return of the original cast [which also included Frasier's radio show producer Roz Doyle, played by Peri Gilpin] fans felt iffy about a reboot.

Yet, with the exception of Mahoney, it seems there's no need to worry.

The Metro also reports that 'stories are being pitched and writing rooms are being booked' for the reboot, but 'cheques haven’t been written' yet.

She [could be] ba-ack! The return of Frasier's son will no doubt pave the way for notorious ex-wife Lilith, Frederick's mother, to make a return to the series, played by Bebe Neuwirth

Goodnight, Seattle? At one point, it was rumoured the show would not be set in Seattle after Frasier was seen relocating to Chicago in the original series finale in 2004

Rumblings: According to Grammer, 'stories are being pitched and writing rooms are being booked' for the reboot, but 'cheques haven’t been written' yet

Back on our screens? Rumblings of the iconic sitcom returning to screens have been rife over the past year or so, since the likes of Will & Grace and Roseanne [later re-branded as The Conners] were resurrected successfully

But going by Grammer's latest hints, fans can likely expect the character of Frederick to become a more permanent fixture, potentially filling the gap left by Mahoney.

Frederick was 15 when he last appeared on Frasier, in the episode High Holidays, and so would be 31 if the show returns in 2020.

Frederick was portrayed by Christopher and Kevin Graves in Cheers, and Luke Tarsitano for his first Frasier appearance, later swapped for Trevor Einhorn until the show ended.

The return of the character will no doubt pave the way for Frasier's ex-wife Lilith, Frederick's mother, to make a return to the series, played by Bebe Neuwirth.