Suggestions by @optimistic_writer

Peter Purves

as Stephen Taylor in What If Doctor Who Wasn't Axed? - Cold Front (2013)

Nicholas Briggs

as Daleks & Mechons in What If Doctor Who Wasn't Axed? - Cold Front (2013)

Peter Fonda

as Tour Guide in What If Doctor Who Wasn't Axed? - Cold Front (2013)

Andrew Lawrence

as Morton Dill in What If Doctor Who Wasn't Axed? - Cold Front (2013)

David Collings

as Horatio Flemyng in What If Doctor Who Wasn't Axed? - Cold Front (2013)

Julie Walters

as Professor Susan Flemyng in What If Doctor Who Wasn't Axed? - Cold Front (2013)

Chris Carter

as Producer in What If Doctor Who Wasn't Axed? - Cold Front (2013)

Jane Tranter

as Executive Producers in What If Doctor Who Wasn't Axed? - Cold Front (2013)

Ira Steven Behr

as Executive Producers in What If Doctor Who Wasn't Axed? - Cold Front (2013)

Chris Carter

as Executive Producers in What If Doctor Who Wasn't Axed? - Cold Front (2013)

Alfred Enoch

as Ensign Correx in What If Doctor Who Wasn't Axed? - Cold Front (2012)

Peter Gallagher

as Gillic in What If Doctor Who Wasn't Axed? - Cold Front (2012)

Morena Baccarin

as To'vel in What If Doctor Who Wasn't Axed? - Cold Front (2012)

Sheridan Smith

as Xyla in What If Doctor Who Wasn't Axed? - Cold Front (2012)

Jason Isaacs

as The Master in What If Doctor Who Wasn't Axed? - Cold Front (2012)

Robert Duncan McNeill

as Donald Harcourt in What If Doctor Who Wasn't Axed? - Cold Front (2012)

Shabana Akhtar Bakhsh

as Pryex in What If Doctor Who Wasn't Axed? - Cold Front (2012)

Christopher Eccleston

as Ostmuz in What If Doctor Who Wasn't Axed? - Cold Front (2012)

Celia Imrie

as Gonett in What If Doctor Who Wasn't Axed? - Cold Front (2012)

John Barrowman

as Eriwick in What If Doctor Who Wasn't Axed? - Cold Front (2012)