Brett Underwood

Brett Underwood, also credited as Tony Coburn, was a guest voice actor for various Big Finish Productions audio stories.

In April 2006, Coburn and his friend Thomas Rees-Kaye were interviewed about their fan film productions on the first episode of Totally Doctor Who.

In October 2021, following BBV Productions' release of a non-DWU Sherlock Holmes audio story featuring Underwood, several writers and licensees ended their involvement with the company.

Iris Wildthyme

 * The Iris Wildthyme Appreciation Society – Barman / Prisoner (as Tony Coburn)

Bernice Summerfield

 * A Handful of Dust – Crewman (as Tony Coburn)
 * Big Dig – Vaughan
 * The Revenant's Carnival – Shrynor
 * In Living Memory – Shrynor
 * The Winning Side – Second Yokel