Seán Carlsen is a voice actor for Big Finish Productions. He played Coordinator Narvin in the audio series Gallifrey and has been featured in over twenty audio adventures in the Doctor Who range, including seasons 1-7 of Gallifrey, the mini series I, Davros and Iris Wildthyme - The Panda Invasion. On television, he was featured in the Doctor Who story The Christmas Invasion and made a cameo appearance in Series 2 of Torchwoood in the episode Sleeper.