Suggestions by @optimistic_writer

Anthony Stewart Head

as The Eleventh Doctor in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Claire Higgins

as Ohila in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Christopher Biggins

as Francis in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Karen Gillan

as Kendara in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

John Leeson

as K-9 in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Louise Jameson

as Leela in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

David Tennant

as Will Adams in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Siobhan Redmond

as The Rani in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Lynda Bellingham

as The Inquisitor in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Brian Miller

as Jack the Ripper in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Angela Bruce

as Major General Winifred Bambera in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Timothy Dalton

as The Rogue in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Jacqueline Pearce

as Angela Jensen in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Sophie Okonedo

as Lizzie Clarke in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Paterson Joseph

as The Doctor in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2009)

Caroline Symcox

as Co-Executive Producers in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2008)

Paul Cornell

as Script Editor in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2008)

Gary Russell

as Producer in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2008)

Robert Shearman

as Co-Executive Producers in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2008)

D.C. Fontana

as Co-Executive Producers in What If Doctor Who Wasn't Axed? - The Twelfth Doctor (2008)