Steven Moffat says it would "insane" to remake 'Doctor Who' in other countries.
The BBC sci-fi drama's executive producer believes it would be misguided to attempt to create a foreign version of the show because there can only be one Doctor.
He told BBC News: "If anyone were to ask me, I'd say it's an absolutely insane idea. You couldn't have more than one Doctor Who in the world. It would just be dreadful."
Steven, who is also the brains behind BBC's hit Sherlock Holmes adaptation 'Sherlock', admitted that he only keeps British audiences in mind when making the shows, despite them being popular around the world too.
He explained: "'Sherlock' and 'Doctor Who' are both doing rather well but they couldn't be more definitively British. They're obtusely British. They're about as British as it gets. You shouldn't be afraid of being British because that's what you're selling."
The 52-year-old TV mogul addressed rival Sherlock show 'Elementary', which airs in the US, admitting he still hasn't seen an episode.
Steven was approached by American channel CBS to remake his version of 'Sherlock' but declined.
He said: "We declined, saying we weren't ready to do that. Shortly after that, they announced they were making an updated version of Sherlock Holmes. Those are the bald facts. I can't comment on how it turned out or the people that made it because I've never seen it.
"We don't own Sherlock Holmes. We don't even own the idea of updating Sherlock Holmes. That's been done before, several times actually. So there's no action to be taken."

Matthew Perry's new show 'The Odd Couple' has received an official pilot order from US network CBS.
The 'Friends' star - who has co-written, produced and stars in the remake of the 1965 Neil Simon Broadway play - was granted a script commitment by CBS last December and has now been given the thumbs up to film a pilot episode.
The classic comedy follows the relationship between two polar opposite roommates, Felix Unger and Oscar Madison.
Matthew will take on the role of the irresponsible Oscar, but the part of uptight Felix is still up for grabs.
The sitcom is being written by 'Frasier' writer Joe Keenan.
Matthew said: "Ever since seeing the movie 'The Odd Couple' when I was 10 years old, it has been a dream for me to play Oscar Madison.
"To be given the opportunity to develop a modern version of it for CBS has put a permanent smile across my face. Plus, I think it's time for me to be in front of a live audience again. I miss that. The search for Felix Ungar is on!"
Matthew has struggled in his attempts to make a TV comeback since 'Friends' ended in 2004.
His last three shows - 'Studio 60 on the Sunset Strip', 'Mr. Sunshine' and 'Go On' - were all cancelled after one season.
The actor recently reunited with his former 'Friends' wife Courteney Cox on her sitcom 'Cougar Town'.

Lacey Turner would rather be in 'EastEnders' than move to Hollywood.
The 25-year-old actress recently returned to her role as Stacey Branning in the BBC One soap and she admits some have questioned why she has decided to go back to the show after finding success in other acting roles.
Lacey said: "I get people saying, 'Why have you gone back there?' I say, 'Because I love it! It's right for me. Some people want to go off and make movies, I just want to make 'EastEnders'."
While Stacey has only just returned to Albert Square, the character will be taking some time off soon to film a full series of 'Our Girl', the one-off drama she starred in for BBC One last year.
However, Lacey insists 'EastEnders' is her full-time home and she has even decorated her dressing room to look exactly like it did before she quit the soap in 2010.
She told Inside Soap magazine: "I've got everything laid out exactly as it used to be. It's like the last three years didn't happen. I'm funny like that! I don't like change."

Scissor Sisters' Jakes Shears has written a "whole album's worth" of songs with Kylie Minogue.
The frontman and band mate Babydaddy worked with the 'Into The Blue' singer on her 2004 hit 'I Believe In You' and 2007 record 'Aphrodite' and claim there's a catalogue of songs which could be released.
Jake told Attitude magazine: "I love writing with her and always have. I'm really proud of all the songs I've written with her and I think someday I'm gonna, like, put together a Scissors-Kylie record.
"There's a whole album's worth of music. It's from over the years. There's some really cool stuff that no-one has heard. We could definitely put together a fun little album. Someday I'm gonna be shifty and leak it."
The 'Filthy/Gorgeous' hitmaker, 35, also praised the 45-year-old singer's writing and claims she is "a lot of fun in the studio" and the trio don't treat recording as work.
He continued: "She's a great writer and I love writing with her, she's great with lyrics. But it's just like playtime, you know. It feels like play, not work. It's just a nice time for us to hang out and be creative with each other."
Jake will also join 'The Voice' coach on the talent show on Saturday (01.03.14) to help advise this year's contestants.

Rudimental have collaborated with Beats by Dr. Dre.
The BRIT Award-winning drum'n'bass group are giving fans a unique look into the creative process behind their latest single, 'Powerless', which features vocals from Becky Hill.
The 'Waiting All Night' quartet feature in the first of a new YouTube series, 'Beat by Beat', which examines the sounds and elements used to create the track, and experience the song as the stars' intended when they were recording it.
In a unique innovation, fans of Rudimental - who won Best Single at last week's BRIT Awards and performed with Bastille - will be able to simultaneously play six different video clips on one page to create different sounds, giving the impression of a DJ's sound mixing desk.
Rudimental - consisting of Piers Agget, Kesi Dryden, Amir Amor and DJ Locksmith - recently revealed how they risked their careers by releasing the smash hit 'Waiting All Night'.
DJ Locksmith told BANG Showbiz: "Everyone was kind of against us putting it out there and all four of us came together and we put our careers on the line with 'Waiting All Night'. It got us through to where we are now, that's why it's such a special track for us."
Watch Rudimental's Beat by Beat video by visiting youtube.com/user/Officialbeatsbydrdre.

Pharrell Williams is streaming his new album 'G I R L' online for free.
The 'Get Lucky' hitmaker says he is "happy to share" an early preview of his second studio album, ahead of its official release on March 3, and all the tracks have been made available to listen to on iTunes radio.
Taking to Twitter, Pharrell wrote: "Thankful for the opportunity to share my new album with everyone. (sic)"
The ten-track follow-up to Pharrell's 2006 debut 'In My Mind' features his Oscar-nominated hit, 'Happy', along with a collaboration with Justin Timberlake on the track 'Brand New', while Alicia Keys teams up with the star for 'Know Who You Are'.
Pharrell, 40, worked with Miley Cyrus on her controversial '#Bangerz' album last year she has returned the favour by lending her vocals to his song 'Come Get It Bae'.
The album also sees a reunion between The Neptunes producer and French house duo Daft Punk following the success of their hit 'Get Lucky', which conquered the charts.
Speaking about the inspiration behind the album's title, Pharrell said: "Imagine if all of the talk show hosts in the world were women, all of the presidents were women, this is my gift to them. This album is dedicated to women across the world."

'G I R L' Tracklisting:
1. Marilyn Monroe
2. Brand New (feat. Justin Timberlake)
3. Hunter
4. Gush
5. Happy
6. Come Get It Bae (feat. Miley Cyrus)
7. Gust of Wind (feat. Daft Punk)
8. Lost Queen/Freq (feat. JoJo)
9. Know Who You Are (feat. Alicia Keys)
10. It Girl

Kanye West is sad his tour has ended.
The 'Black Skinhead' rapper, who finished the north American leg of his 'Yeezus' tour this month, thought it was a success but says he didn't want to stop performing.
In an interview on 'Late Night With Seth Meyers', he said: "I thought it went really good. It's kinda sad when it's over 'cause you put so much into it and so many people are really excited to see it. It's fun to be able to express something that you created."
Talking about the diamond-encrusted mask he wore on stage, he said: "The mask is great. It's freeing. A place where you can express yourself to your audience, to everyone, without being judged having to live up to whatever your name is supposed to represent.
"Just to feel like a new artist again. That's the reason I perform most of the show in a mask."
The 36-year-old star, who is known for ranting in interviews and has compared himself to Apple co-founder Steve Jobs, also brushed off criticism but thinks he has a long way to go before people understand him.
He said: "2013, all the controversy, blah blah blah blah...I'm in the process of breaking down walls that people will understand 10 years from now, 20 years from now."

Tom Hardy will play both Kray twins in the forthcoming big screen biopic 'Legend'.
The 'Tinker Tailor Soldier Spy' actor is in talks to play famed criminals Reggie and Ronnie Kray - who were known as perpetrators of organised crime in the East End of London during the 1950s and 1960s - and he admits he hadn't ever "dreamt" of playing two character in the same film.
The 36-year-old star told the MailOnline: "All the plans are on the table. There's a lot of crossing the t's and dotting the i's, and there's a lot of shift and geography to work out.
"It would be difficult. It's quite technical and I'm a bit of an anorak.
"There's a physical transfer; we'd have to shoot one bit, go away come back and shoot it all again with another part. I've never dreamt of playing two people on the screen!"
The script was penned by Brian Helgeland, and although it largely focuses on the Kray brothers other stars including Frank Sinatra and Judy Garland, who were often spotted at Reggie's Knightsbridge nightclub Esmeralda's Barn, are mentioned.
The film is expected to begin production in the UK later this year.

Kevin Bacon will star in '6 Miranda Drive'.
The 55-year-old actor is in talks to feature alongside Radha Mitchell in 'Rogue' director Greg McLean's forthcoming film, according to The Hollywood Reporter.
Jason Blum's Blumhouse banner and Matt Kaplan from Chapter One Films are producing, while Robyn Marshall from Chapter One will co-produce.
The film was also written by McLean and revolves around a family who bring home a supernatural force when they return from a trip to the Grand Canyon.
Bacon - who was catapulted to the spotlight following 1980's hit film 'Friday the 13th' - recently revealed he thinks fame is "bizarre", but after being in the spotlight for over 30 years he has adjusted and grown accustomed to living in the public eye.
He said: "Fame is very, very bizarre. If you just got it all of a sudden, out of nowhere, you would be like: 'This is very weird.'
"Then you kind of get used to it and think: 'This is what my life is."
The hunk hit the big screen last year in 'Skum Rocks!' where he starred as himself and 'R.I.P.D.' as Boston Police detective, Bobby Hayes.

Robin Thicke wants to win Paula Patton back.
The 'Blurred Lines' singer - who announced on Monday (24.02.14) he and the actress were separating after eight years of marriage - is hoping to show his estranged spouse he can be a good husband in a bid to persuade her not to file for divorce.
A source told TMZ Robin "desperately wants to save his marriage" and is going to curb his partying ways as he wants to try and convince his childhood sweetheart he can change and be a good husband.
The source added that the singer is also "really concerned" about their three-year-old son, Julian, and doesn't want him raised in two separate homes.
The split comes after Robin was seen dancing closely to a mystery brunette in a nightclub in Paris in January, while last year another woman claimed the star had kissed her at a party in New York.
Robin and Paula, 38, announced on Monday they had "mutually decided to separate at this time", but will remain "best friends".
The singer had axed three consecutive concerts on his North American tour in the wake of the split, which are set to be rescheduled and the tour will resume in Washington tomorrow (27.02.14).

Tara Reid accepted the leading role in 'Sharknado' as a joke.
The 38-year-old actress stars alongside former 'Beverly Hills 90210' actor Ian Ziering in the film, which sees a freak hurricane swamp Los Angeles with hundreds of deadly sharks terrorising its residents, and admits she never expected the made-for-TV movie to be so successful.
She said: "I'm just as stunned as everyone else. Come on, I did it as a joke! I didn't even think anyone was going to see it.
"And then what happened has never happened before on any movie. Even now, you thought the buzz was going to stop about 'Sharknado', but it just keeps going."
Following on from its success, Asylum Films - who also made 'Snakes on a Plane' - are now working on a sequel which will also star Tara Reid and she says it will be even more "ridiculous" than the first instalment.
Speaking to HLNtv, she said: "In the scene in the first film, where I ended up in the stomach of the shark, which was so ridiculous that you think, 'How are you going to top that?' Well, we're actually pretty close to topping it."
"I can't tell too much. I'm not allowed to, to be honest with you. But you can definitely expect it to be as entertaining - if not more, believe it or not - as the first one."
The 'American Pie' star was spotted filming scenes for 'Sharknado 2: The Second One' in New York last week and the movie is set to be released in select cinemas in July.

Chantel Jeffries has broken her silence about her relationship with Justin Bieber.
The 21-year-old model has spoken for the first time since the 'All That Matters' singer's DUI arrest in Miami on January 23, and was quick to shut down rumours they are dating after she was spotted on numerous outings with the star including a romantic getaway to Panama.
During the brief interview with E! News host Terrence J, Chantel insisted: "I didn't date Justin."
The blonde beauty - who strikes an uncanny resemblance to Kim Kardashian - addressed accusations she is a gold-digger who befriended the 19-year-old singer for his fame and wealth.
She laughed: "Oh my gosh. If anything, you could say I'm a 'goal' digger. I have my own goals and I'm focused on those."
And despite claims no one in Justin' entourage is willing to say no to him, she insisted that wasn't the case, but then claimed it wasn't her "place" to comment on his antics.
Chantel added: "That's not true... I'm not around all the time. In the past, I don't know what's happened with him, and it's not my place to say anything.