'Doctor Who' fans were delighted to catch a glimpse of Cybermen on set at the weekend.
The Friary in Cardiff city centre was filled with the terrifying silver robots as new Time Lord Peter Capaldi, joined by newcomer Michelle Gomez and returning Jemma Redgrave - who previously appeared in 50th anniversary episode 'The Day of the Doctor' as Kate Lethbridge-Stewart - filmed a narrow escape from the sinister enemies.
According to online reports, Kate tried to prove her credentials by confronting the Cybermen, but things go wrong and the Doctor has to order everyone to back away.
During a break from filming, Peter was happy to sign autographs and pose for pictures with fans who were watching filming, while extras from the show were also queuing up to get their photographs taken with the Cybermen.
Jenna Colman, who stars as the Doctor's companion Clara Oswald, did not seem to be on set.
The new series of the show returns to BBC One on August 23.
Michelle's role on the sci-fi series has just been announced and she is thrilled to have joined the cast.
She said: "Well of course Peter Capaldi is our next Doctor, which makes complete sense. I'm thrilled to join him. Well, you would be, wouldn't you?"
Showrunner Steven Moffat added: "I've known Michelle for years, and I'm thrilled to welcome her to Doctor Who. She's everything we need - brilliant, Scottish, and a tiny bit satanic.

Rolf Harris has been found guilty of 12 counts of indecent assault.
The 84-year-old TV presenter was convicted of attacking four underage girls, including the friend of his daughter Bindi Nicholls, between 1968 and 1986 at Southwark Crown Court today (30.06.14).
Harris will be sentenced on Friday (04.07.14) and judge Mr. Justice Sweeney declared a custodial term was "uppermost in the court's mind".
In a long-running and emotional seven-week trial, a jury heard how Harris had a "dark side" behind what the prosecution described as his "friendly and lovable exterior".
The 'Animal Hospital' star strenuously denied sexually assaulting a friend of his daughter's as a teenager, but conceded he did have a relationship with the woman - now 40 - in her adult years.
The unidentified female accused Harris of abusing her from the age of 13 and claims the TV star performed a sex act on her at his home in Bray, Berkshire, and didn't seem troubled by the fact Bindi was asleep nearby.
The claimant also described other instances of abuse by Harris, alleging he once fondled his penis in front of her. She described the Australian star's anatomy as "small ... very, very small".
Harris is also accused of inappropriately hugging and tickling the then-teenager and was branded "creepy" in court.
The woman said: "The way he hugged you and tickled you all over was cringey. I never liked it. Rolf would fold himself around you. He was a big man. He would fold you in his arms and tickle you up and down your body."
Quizzed why she never told Harris' daughter Bindi or his wife Alwen Hughes about the attack, the claimant said: "I was shocked and panicked by it. I didn't know what to do. I sat on the end of the bed in a state of shock, really."

Sam Smith's favourite thing about Glastonbury is "mud on sexy bodies".
The 'Stay With Me' singer performed on The Other Stage on Sunday (29.06.14) and also joined Disclosure in the evening for a rendition of their track 'Latch'.
Sam spent Saturday (28.06.14) taking in the atmosphere of the festival held on Worthy Farm in Somerset, South West England, and he loved seeing lots of revellers getting stuck into the mud.
Speaking backstage on Sunday, he told BANG Showbiz: "What do I love about Glastonbury? Mud on sexy bodies! I've been good though, I'm only just having my first drink and I got here yesterday morning."
Sam did suffer some disappointment at Glastonbury though as he couldn't go and watch Dolly Parton's performance on the Pyramid Stage because it clashed with his own show.
He said: "It's been absolutely amazing but I've not seen that many people play, I was performing while Dolly was playing. It would have been great to go and watch her sing."
Ellie Goulding watched Dolly's set on a big screen in the hospitality tent and admitted she'd be delighted if she can have a career that lasts as long as Dolly's.
Ellie said: "I'd love to be able to perform live for as long as Dolly. She's amazing!"
Dolly's performance drew one of the biggest crowds of the weekend and her set included several of her greatest hits, including 'Islands in the Stream', '9 to 5' and 'Jolene'.
The 68-year-old country legend was also joined on stage by Bon Jovi guitarist Richie Sambora for 'Lay Your Hands On Me'.

Paolo Nutini has dismissed Metallica's Glastonbury set insisting the metal band just play the "same song over and over again".
The 27-year-old musician didn't bother to go and watch the 'For Whom The Bell Tolls' rockers' headline set on Saturday evening (28.06.14) because he thinks their music is boring.
Speaking to BANG Showbiz backstage, he said: "Metallica just play one song. "It's just the same song over and over again with Metallica. I wasn't interested in their set."
Paolo drew a large crowd for his set on The Other Stage on Friday (27.06.14) with a set packed with tracks from his latest album 'Caustic Love'
The Scottish singer stuck around at the festival to party and was spotted kissing a stunning brunette backstage on Saturday night.
Paolo spotted the mystery brunette and immediately went over to talk to her, after chatting to her for just a short time they started smooching.
An onlooker said: "Paolo and the girl were kissing very intensely. When they weren't kissing the girl kept staring into his eyes and was touching Paolo's chest."
Despite Paolo's lack of interest in Metallica, the band were watched by the biggest crowd of the weekend when they took to the Pyramid Stage on Saturday night and their performance was acclaimed as one of the highlights of the weekend.
Drummer Lars Ulrich described the experience as "sensational" and insisted he and his bandmates, frontman James Hetfield, guitarist Kirk Hammet and bassist Robert Trujillo, felt honoured to be given the chance to perform at the world famous event.
Lars said: "That was sensational (for us). I don't remember much of it ... the energy was fantastic. It was other-worldly.

Joe Letteri insists the title for the final instalment of 'The Hobbit' had to be changed.
The visual effects artist - who is known for his work on films including 'The Lord of the Rings' and 'Rise of the Planet of the Apes' - claims director Peter Jackson made the right decision in changing the name of the final instalment of the epic fantasy trilogy.
Following on from 'The Hobbit: An Unexpected Journey' and 'The Hobbit: The Desolation of Smaug', the third in the series was originally going to be named 'The Hobbit: There and Back Again' but was altered earlier this year to 'The Hobbit: The Battle of the Five Armies'.
Quizzed on whether he felt the new title was a better fit for the concluding chapter, Letteri said: "Yeah because it is the climax, and you really just need to know that there is another battle for Middle-earth."
'The Hobbit' serves as a prequel to 'The Lord of the Rings' - both of which were written by J.R.R. Tolkien and adapted into films by Jackson - and Letteri thinks the new title better demonstrates that.
He told Collider: "The whole extension of The Hobbit's story has really been to get us to the point where we understand when we leave it what's going to happen when you pick up the 'Lord of the Rings' trilogy, and this really does kind of set that tone."
When asked whether the battle will be the highlight of all six films, Letteri added: "We hope so, that's the whole idea ... It's got to give you the sense that if it isn't won, there is no 'Lord of the Rings'."
'The Hobbit: The Battle of the Five Armies' is slated for worldwide release in December 2014.

Susan Sarandon claims she was peer pressured into starring in 'Tammy'.
The 67-year-old actress plays the alcoholic grandmother of 'Bridesmaids' star Melissa McCarthy's character in the comedy, which marks Ben Falcone's directorial debut, and she's confessed she was sceptical about how she'd fit into the project.
She explained: "Ben and Melissa called me and prepared me for the script. I read the script and didn't understand what reality we would be in and so we had another call.
"Then Mark Duplass called me, I didn't even know he was going to be in the movie, it was a conspiracy. He said you have to do this, you have to do this, they're such great people.
"So peer pressure got to me and I thought, I'll jump."
'Tammy' tells the story of a woman - played by McCarthy - who, after losing her job, husband and car in one day, decides to escape from her small town existence, but with no form of transport is forced to take her hard partying grandmother Pearl along for the ride.
The 43-year-old comedienne admits Sarandon was worried she was expecting her to play a traditional grandmother, but insists once they'd clarified that wasn't the case, she was more than happy to join the cast.
McCarthy told Latino Review: "One of the first questions when we were talking on the phone was, 'Are you seeing a little old granny with glasses and a knitted sweater and an up do bun?'
"We were like oh God no she's a raging alcoholic and she sleeps around. Then Susan was like OK we'll be fine."

Kim Kardashian has branded her visit to Austria the "trip from hell".
The 33-year-old beauty, who is married to rapper Kanye West, was left reeling when a white male reporter donned 'blackface' - the act of sporting dark coloured make-up to portray a black person - and claimed, "It's me, Kanye!"
Kim and mother Kris Jenner, 58, expressed their outrage over the trip - which occurred in February - in the latest episode of 'Keeping Up with the Kardashians' last night (29.06.14).
The reality star said: "I can't believe there's this guy is in blackface. I don't get why him or anyone else would find this funny."
Kim added to her mother: "This is just a sick joke."
The brunette beauty also appeared to take offence to an interviewer who referred to Kanye's song with Jay Z, 'N****s in Paris', at the Vienna Ball, claiming: "Yeah, we're going to dance. We wait for 'N****s in Vienna'."
Kim commented: "Did he say what I think he just said?"
An incensed Kris said: "I get that he's a comedian but clearly, that was incredibly inappropriate. We just need to get the hell out of here."
Kris later fumed she had "never been as disrespected as a woman or a human being in my life".
The mother-of-five - who also had some of her belongings stolen - continued: "I come to Vienna and everything I had that's valuable is stolen out of my suitcase and this man treats Kim with such disrespect. That's not where we come from, my children are taught to treat people with respect ... I feel like I let my daughter down by allowing her to even experience this nonsense."
Speaking to her sister Khloe Kardashian, 30, upon their return home, Kim branded the visit the "trip from hell", adding: "It was so racist."
The star also recalled a harrowing experience on the plane home when a fellow traveller verbally berated her for dating a black man and having a biracial child, 12-month-old daughter North.
Kim recalled: "[She said] 'She has a sex video with a black guy...' going on and on. And then the pilot had to come out, the captain, everyone ... they're all, 'We're going to call the LAPD the second we land.' Her husband sat on her [and told her], 'Shut the f**k up.' "

Robert Downey Jr.'s son was arrested yesterday (29.06.14).
The 'Iron Man 3' actor's oldest child Indio, 20, was arrested in West Hollywood when police noticed he was smoking something out of a pipe in a vehicle he was passenger in.
After a Los Angeles County Sheriff's deputy pulled the car over, they allegedly found cocaine in Indio's possession.
Indio - whose mother is the actor-s ex-wife Deborah Falconer - was booked for possession of cocaine and released from jail just after midnight after posting $10,000 bail.
The 'Sherlock Holmes' actor - who also has a two-year-old son Exton with wife Susan Levin - previously battled drug addiction himself and was arrested numerous times in the 1990s on drug-related charges.
Downey has previously spoken of how he felt "safe" in prison.
He said: "When the door clicks shut, then you are safe. There is nothing aside from a rogue correctional officer that can do you harm if you have the right cellie. You are actually in the safest place on Earth. Safe from the intruders. From anything that might thwart the mortal coil."

'Monty Python Live (Mostly): One Down, Five To Go' will feature a cameo from Stephen Hawking.
One of the surprises planned for the iconic comedy troupe's final hurrah, which kicks off tomorrow night (01.07.14) at London's O2 Arena with the first of 10 live shows, is a special appearance from the pioneering scientist.
Eric Idle explained: "It would be folly to try and switch it up and do something else at this age. But we've changed it up a bit and put some surprises in. Stephen Hawking is in the show and is coming to the performance too. He was asked and within one minute, he said yes!"
The gang are performing together for the first time in 40 years, without sixth Python Graham Chapman, who died of cancer in 1989, and hinted there will be plenty more surprise cameos in store for fans.
Michael Palin teased: "We might have certain celebrities... There's a sketch which has potential [famous guests] in depending on who turns up on the night."
Meanwhile, John Cleese revealed David Walliams will be on hand to host an unconventional red carpet for fans during the final ever 'The Last Night Of The Pythons' show, which will be broadcast in 1800 cinemas around the world and be shown live on UKTV Gold.
He said: "A lot of Python fans like to get dressed up in silly costumes, at the O2 there'll be the 'dead carpet' where people can come and be interviewed. David Walliams is broadcasting that on the last night. It's like a crazy party!"
Legions of comedy fans the world over will be disappointed to hear the July 20 show is definitely the last.
John added: "It really is the last show and I think we all feel very content with it... I certainly thought it might be fun to go and do America, but the more I thought about it the more I didn't really want to.
"I think it's much better to do it really well once in England, where it started, and leave it at that."
Eric concluded: "It's exciting to be able to say goodbye publicly in one show, that's really exciting. The Beatles didn't get a chance to do that. I think that's rather lovely, I'm very grateful it's come to be."
Michael, John and Eric were joined by Terry Jones and Terry Gilliam at a press conference announcing the biggest live event of 2014. New tickets go on sale tomorrow, while today sees the release of the complete collection of all nine albums, 'Monty Python's Total Rubbish', by Virgin EMI Records.

Coleen and Wayne Rooney have been partying in Las Vegas. The couple - who have sons Kai, four, and 13-month-old Klay together - decided to give Glastonbury festival in Somerset, south-west England a miss this year in favour of soaking up the sun in th...

Rihanna showed her support for the Mexican national soccer team as she went to dinner wearing a green jacket emblazoned with their badge after they were knocked out of the FIFA World Cup.

Ashanti showed off her figure in a cleavage-bearing white gown with lace sleeves and thigh high slit as she attended the BET Awards in Los Angeles, California.