EPISODE four of Pieces of Eighth sees us joined by an actor who has encountered Paul McGann's Doctor in two very different roles.

Seán Carlsen was first cast in The Natural History of Fear, in which he played a variety of roles, and made an impression producer/director Gary Russell, who subsequently cast him as CIA Co-ordinator Narvin in the Gallifrey spin-off series.

Narvin has since become one of Big Finish's most beloved original creations, and Sean joins us to share his experiences of working with Paul McGann and Sir Derek Jacobi, as well as meeting War Doctor Sir John Hurt.