Announced Guests
We're excited to introduce you to our Capital Sci-Fi Con 2025 guest line-up!
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Ian McDiarmid

A celebrated actor and director, Ian is best known for his iconic portrayal of Emperor Palpatine/Darth Sidious in the Star Wars saga.
From his chilling debut in Return of the Jedi to his unforgettable performances in the Star Wars prequels and beyond, Ian has brought one of the galaxy's most sinister and compelling characters to life.
Outside of Star Wars, Ian has enjoyed a remarkable career in theatre and film, earning acclaim for his work with the Royal Shakespeare Company and National Theatre. As both an actor and director, his craft has spanned classics by Shakespeare, Chekhov, and Pinter, as well as modern screen performances.
Ian will be attending Capital Sci-Fi Con on Sunday 16th only.
From his chilling debut in Return of the Jedi to his unforgettable performances in the Star Wars prequels and beyond, Ian has brought one of the galaxy's most sinister and compelling characters to life.
Outside of Star Wars, Ian has enjoyed a remarkable career in theatre and film, earning acclaim for his work with the Royal Shakespeare Company and National Theatre. As both an actor and director, his craft has spanned classics by Shakespeare, Chekhov, and Pinter, as well as modern screen performances.
Ian will be attending Capital Sci-Fi Con on Sunday 16th only.
Peter Davison

Peter Davison, is an English actor with many credits in television dramas and sitcoms. He made his television acting debut in 1975 and became famous as Tristan Farnon in the BBC's television adaptation of James Herriot's All Creatures Great and Small stories.
Peter's other starring roles included the sitcoms Holding the Fort, Sink or Swim , Dr. Stephen Daker in A Very Peculiar Practice and Albert Campion in Campion. He also played David Braithwaite in At Home with the Braithwaites , "Dangerous" Davies in The Last Detective and Henry Sharpe in Law & Order: UK.
In 1980, Davison signed a contract to play the fifth Doctor in Doctor Who, succeeding Tom Baker and at age 29, was at the time the youngest actor to have played the lead role. This is a record which he retained for nearly thirty years until Matt Smith took the role in 2009 at age 26. Attracting such a high-profile actor as Davison was a real coup for the programme. The Fifth Doctor encountered many of the Doctor's best-known adversaries, including the Cybermen in Earthshock and the Daleks and Davros in Resurrection of the Daleks.
After leaving Doctor Who, he returned to the franchise several times. He presented the special videotape documentary release Daleks – The Early Years, showcasing selected episodes of missing Dalek stories from both the First Doctor and Second Doctor's eras. Peter did return to play the Fifth Doctor in the 1993 for a multi-doctor charity special Dimensions in Time and in the video game Destiny of the Doctors.
Since 1999, he has reprised his role as the Fifth Doctor in numerous Doctor Who audio dramas for Big Finish Productions. He returned once again in "Time Crash", a special episode written by Steven Moffat for Children in Need; in the episode, the Fifth Doctor met the Tenth Doctor, played by Peter's future son-in-law David Tennant.
Peter also wrote and directed The Five(ish) Doctors Reboot, an affectionate and comedic account of Colin Baker, Sylvester McCoy and himself attempting to get parts in the Anniversary Special, featuring cameos from numerous Doctor Who cast, crew, and famous fans.
Peter's other starring roles included the sitcoms Holding the Fort, Sink or Swim , Dr. Stephen Daker in A Very Peculiar Practice and Albert Campion in Campion. He also played David Braithwaite in At Home with the Braithwaites , "Dangerous" Davies in The Last Detective and Henry Sharpe in Law & Order: UK.
In 1980, Davison signed a contract to play the fifth Doctor in Doctor Who, succeeding Tom Baker and at age 29, was at the time the youngest actor to have played the lead role. This is a record which he retained for nearly thirty years until Matt Smith took the role in 2009 at age 26. Attracting such a high-profile actor as Davison was a real coup for the programme. The Fifth Doctor encountered many of the Doctor's best-known adversaries, including the Cybermen in Earthshock and the Daleks and Davros in Resurrection of the Daleks.
After leaving Doctor Who, he returned to the franchise several times. He presented the special videotape documentary release Daleks – The Early Years, showcasing selected episodes of missing Dalek stories from both the First Doctor and Second Doctor's eras. Peter did return to play the Fifth Doctor in the 1993 for a multi-doctor charity special Dimensions in Time and in the video game Destiny of the Doctors.
Since 1999, he has reprised his role as the Fifth Doctor in numerous Doctor Who audio dramas for Big Finish Productions. He returned once again in "Time Crash", a special episode written by Steven Moffat for Children in Need; in the episode, the Fifth Doctor met the Tenth Doctor, played by Peter's future son-in-law David Tennant.
Peter also wrote and directed The Five(ish) Doctors Reboot, an affectionate and comedic account of Colin Baker, Sylvester McCoy and himself attempting to get parts in the Anniversary Special, featuring cameos from numerous Doctor Who cast, crew, and famous fans.
Janet Fielding

Janet Fielding was born in Brisbane, Australia, in 1953. She studied at Queensland University, where she first took up acting. After leaving university she worked with an English writer/director named Albert Hunt, who in 1977 brought her to England in one of his shows.
Once in England, she joined Ken Campbell at the Science Fiction Theatre of Liverpool and appeared in productions including "The Warp" and "The End is Nigh." Following this she won a small part in an episode of the Hammer House of Horror series.
Janet was then cast in Doctor Who as the Australian airline stewardess Tegan Jovanka in Tom Baker's final serial Logopolis: Part One, and became the longest-running companion of Peter Davison's Doctor, appearing until Resurrection of the Daleks: Part Two.
After leaving the series, she appeared in episodes of the ITV series Shelley and Minder and in productions of "The Collector" and the pantomime "Aladdin" in the theatre.
In 1991, she gave up acting to work as an administrator in the pressure group Women in Film and Television, where she stayed for three-and-a-half years. She then became a director of Marina Martin Associates, an actors' agency, representing amongst others the Eighth Doctor, Paul McGann.
Once in England, she joined Ken Campbell at the Science Fiction Theatre of Liverpool and appeared in productions including "The Warp" and "The End is Nigh." Following this she won a small part in an episode of the Hammer House of Horror series.
Janet was then cast in Doctor Who as the Australian airline stewardess Tegan Jovanka in Tom Baker's final serial Logopolis: Part One, and became the longest-running companion of Peter Davison's Doctor, appearing until Resurrection of the Daleks: Part Two.
After leaving the series, she appeared in episodes of the ITV series Shelley and Minder and in productions of "The Collector" and the pantomime "Aladdin" in the theatre.
In 1991, she gave up acting to work as an administrator in the pressure group Women in Film and Television, where she stayed for three-and-a-half years. She then became a director of Marina Martin Associates, an actors' agency, representing amongst others the Eighth Doctor, Paul McGann.
Graham McTavish

Graham McTavish is a Scottish actor and author known for his many well-known roles. Graham is best known on the convention scene as Dwalin in The Hobbit film trilogy, The Saint of Killers in the AMC series Preacher, Dougal MacKenzie and William Buccleigh MacKenzie in the Starz series Outlander, Sigismund Dijkstra in the Witcher and Harrold Westerling in the HBO series House of the Dragon.
He is also known for his roles in the video game franchise Uncharted as the main antagonist Zoran Lazarević in Uncharted 2: Among Thieves and Charlie Cutter in Uncharted 3: Drake's Deception.
As an author, Graham and Outlander co-star Sam Heughan co-wrote Clanlands: Whisky, Warfare, and a Scottish Adventure Like No Other, which hit No. 1 on the New York Times' Best Seller Lists for hardcover nonfiction and for combined print and e-book nonfiction.
He is also known for his roles in the video game franchise Uncharted as the main antagonist Zoran Lazarević in Uncharted 2: Among Thieves and Charlie Cutter in Uncharted 3: Drake's Deception.
As an author, Graham and Outlander co-star Sam Heughan co-wrote Clanlands: Whisky, Warfare, and a Scottish Adventure Like No Other, which hit No. 1 on the New York Times' Best Seller Lists for hardcover nonfiction and for combined print and e-book nonfiction.
Tamaryn Payne

Tamaryn Payne is an English actress known to TV audiences as Hollyoaks’ Annalise Appleton, and to avid gamers as the voice of Mizora in the critically acclaimed Baldur’s Gate III.
Graduating with a BA degree from the Arts Educational School in London in 2010, Payne soon secured roles in short films as a stepping stone into the industry. It was in 2011 that she found firm footing, joining the cast of Hollyoaks in a role that would span 83 episodes across a two-year period.
Payne’s other credentials lend themselves to the likes of Casualty, Vendetta, Sacrilege and Vikings.
Payne has also lent her voice to multiple video games, including Game of Thrones: A Telltale Series, Nine Parchments and A Year of Rain, as well as the animated movie Chicken Run: Dawn of the Nugget. Her most recognisable voice work comes in her roles as Qi’Ra in Ubisoft’s Star Wars: Outlaws, Lohse in Divinity: Original Sin II and Mizora in the smash hit Baldur’s Gate III.
Graduating with a BA degree from the Arts Educational School in London in 2010, Payne soon secured roles in short films as a stepping stone into the industry. It was in 2011 that she found firm footing, joining the cast of Hollyoaks in a role that would span 83 episodes across a two-year period.
Payne’s other credentials lend themselves to the likes of Casualty, Vendetta, Sacrilege and Vikings.
Payne has also lent her voice to multiple video games, including Game of Thrones: A Telltale Series, Nine Parchments and A Year of Rain, as well as the animated movie Chicken Run: Dawn of the Nugget. Her most recognisable voice work comes in her roles as Qi’Ra in Ubisoft’s Star Wars: Outlaws, Lohse in Divinity: Original Sin II and Mizora in the smash hit Baldur’s Gate III.
Amy Manson

Amy Manson is a Scottish actress probably best known on the convention scene for her role as Merida in the fifth season of the ABC Disney fairy tale drama series Once Upon a Time.
On television, she has played Alice Guppy in Torchwood, appeared as Abby Evans in Casualty as well as guest-starred in episodes of Doctors, The Bill and My Family.
Manson played Lizzie Siddal, muse, wife and lover of Dante Gabriel Rossetti, in the BBC Two period drama Desperate Romantics. She also appeared as the vampire Daisy Hannigan-Spiteri in series two of Being Human, alongside Desperate Romantics co-star Aidan Turner. She also took on the role of Medea in the series Atlantis.
Manson played Ginger Corrigan in the 2010 adaptation of Agatha Christie's Marple: The Pale Horse and also played Fleur Morgan in Outcasts for BBC One. In 2011, Manson portrayed Leah in the third series of Misfits and Emma "Whirly" Tyson in the BBC drama Young James Herriot. Amy took on the main role of Sarah / Maladie in the popular TV Series the Nevers in 2021 - 2023.
Most recently, she appeared as Rhona Moncrieffe in the BBC drama, Rebus, an adaptation of the Inspector Rebus series by Ian Rankin.
On television, she has played Alice Guppy in Torchwood, appeared as Abby Evans in Casualty as well as guest-starred in episodes of Doctors, The Bill and My Family.
Manson played Lizzie Siddal, muse, wife and lover of Dante Gabriel Rossetti, in the BBC Two period drama Desperate Romantics. She also appeared as the vampire Daisy Hannigan-Spiteri in series two of Being Human, alongside Desperate Romantics co-star Aidan Turner. She also took on the role of Medea in the series Atlantis.
Manson played Ginger Corrigan in the 2010 adaptation of Agatha Christie's Marple: The Pale Horse and also played Fleur Morgan in Outcasts for BBC One. In 2011, Manson portrayed Leah in the third series of Misfits and Emma "Whirly" Tyson in the BBC drama Young James Herriot. Amy took on the main role of Sarah / Maladie in the popular TV Series the Nevers in 2021 - 2023.
Most recently, she appeared as Rhona Moncrieffe in the BBC drama, Rebus, an adaptation of the Inspector Rebus series by Ian Rankin.
Evelyn Hollow

Evelyn is a Scottish writer and paranormal psychologist. Uncanny fans will know Evelyn from the hit BBC paranormal podcast and TV show, alongside The Witch Farm and The Battersea Poltergeist podcasts.
Evelyn is an author, having written for Esoterica Zine and HAUNTED magazine amongst many others, and her first book 'Atlas of Paranormal Places' was released to rave reviews in September 2024.
A former psychology lecturer with a Master of Research in Paranormal Psychology, Evelyn is a go-to expert in all things paranormal.
Evelyn will be attending Capital Sci-Fi Con on Saturday 15th only.
Evelyn is an author, having written for Esoterica Zine and HAUNTED magazine amongst many others, and her first book 'Atlas of Paranormal Places' was released to rave reviews in September 2024.
A former psychology lecturer with a Master of Research in Paranormal Psychology, Evelyn is a go-to expert in all things paranormal.
Evelyn will be attending Capital Sci-Fi Con on Saturday 15th only.
Jimmy Vee

Jimmy’s work as an actor, puppeteer and stunt performer can be found across the sci-fi verse.
He has featured in various episodes of “Doctor Who” and “The Sarah Jane Adventures” over the years portraying a number of different monsters and aliens, and has also worked on Harry Potter and Star Wars, including having replaced the late Kenny Baker in the role of R2-D2 in “Star Wars: The Last Jedi” (2017).
In recent years Jimmy can be seen in “Rocketman” (2019) and “The Witcher” prequel “The Witcher: Blood Origin” (2022).
Capital Sci-Fi Con is grateful to have Jimmy as a long-standing guest ambassador.
He has featured in various episodes of “Doctor Who” and “The Sarah Jane Adventures” over the years portraying a number of different monsters and aliens, and has also worked on Harry Potter and Star Wars, including having replaced the late Kenny Baker in the role of R2-D2 in “Star Wars: The Last Jedi” (2017).
In recent years Jimmy can be seen in “Rocketman” (2019) and “The Witcher” prequel “The Witcher: Blood Origin” (2022).
Capital Sci-Fi Con is grateful to have Jimmy as a long-standing guest ambassador.
James Mackenzie

James is best known by Young Warriors as host of BAFTA award winning CBBC children’s adventure gameshow “Raven” (2002-2010).
Throughout his career he has appeared in many iconic Scottish television shows including Rebus, Taggart, Still Game and River City. CBeebies viewers will have seen James in popular children’s TV show “Molly and Mack” in recent years, and Outlander fans will know James as convict Caleb in season 4 of the show.
Capital Sci-Fi Con is grateful to James for being a long-standing guest ambassador.
Throughout his career he has appeared in many iconic Scottish television shows including Rebus, Taggart, Still Game and River City. CBeebies viewers will have seen James in popular children’s TV show “Molly and Mack” in recent years, and Outlander fans will know James as convict Caleb in season 4 of the show.
Capital Sci-Fi Con is grateful to James for being a long-standing guest ambassador.