Meet The Guests
Sophie Aldred
Ace – Doctor Who
Best known for her unforgettable role as Ace, companion to the Seventh Doctor in Doctor Who, Sophie Aldred has become a beloved figure in the world of British science fiction. Appearing alongside Sylvester McCoy, her character’s courage, wit, and baseball bat made her one of the most iconic companions in the show’s history.
Beyond Doctor Who, Sophie has enjoyed a diverse career spanning television, theatre, and voice acting — including work on popular children’s series and numerous Big Finish audio dramas. She also reprised her role as Ace in Doctor Who: The Power of the Doctor, delighting fans old and new.
Meet Sophie in person at Nebula Fest 2026, where she’ll be signing autographs, taking photos, and joining us on stage for a Q&A panel you won’t want to miss!
Greg Austin
Charlie Smith – Class
Greg Austin is best known for his standout role as Charlie Smith in the BBC’s Doctor Who spin-off series Class, where he brought depth and heart to the alien prince navigating life on Earth within the Whoniverse. His performance quickly earned him recognition among sci-fi fans around the world.
Beyond Class, Greg has appeared in several acclaimed productions including Hunters (alongside Al Pacino) and ITV’s hit period drama Mr Selfridge, where he portrayed Gordon Selfridge. With his versatility and charisma, Greg has become a rising star across both British and international screens.
Meet Greg in person at Nebula Fest 2026, where he’ll be signing autographs, posing for photos, and joining fellow guests for a Q&A session — a must for fans of Doctor Who and Class!