Suggestions by @chasestucki

Jenna Coleman

as The Twenty Second Doctor in What If Doctor Who Not Cancelled

Richard Madden

as The Twenty First Doctor in What If Doctor Who Not Cancelled

Sophie Turner

as The Twentieth Doctor in What If Doctor Who Not Cancelled

Thandiwe Newton

as The Nineteenth Doctor in What If Doctor Who Not Cancelled

Tom Hiddleston

as The Eighteenth Doctor in What If Doctor Who Not Cancelled

Dev Patel

as The Seventeenth Doctor in What If Doctor Who Not Cancelled

Eddie Redmayne

as The Sixteenth Doctor in What If Doctor Who Not Cancelled

Benedict Cumberbatch

as The Fifteenth Doctor in What If Doctor Who Not Cancelled

Idris Elba

as The Fourteenth Doctor in What If Doctor Who Not Cancelled

Phoebe Waller-Bridge

as The Thirteenth Doctor in What If Doctor Who Not Cancelled

Alan Cumming

as The Twelfth Doctor in What If Doctor Who Not Cancelled

Chiwetel Ejiofor

as The Eleventh Doctor in What If Doctor Who Not Cancelled

Richard E. Grant

as The Tenth Doctor in What If Doctor Who Not Cancelled

Paul McGann

as The Ninth Doctor in What If Doctor Who Not Cancelled

Richard Griffiths

as The Eighth Doctor in What If Doctor Who Not Cancelled

Sylvester McCoy

as The Seventh Doctor in What If Doctor Who Not Cancelled

Harry Melling

as The 2nd Doctor in Doctor Who 15 Doctors

Mark Gatiss

as Brigadier Lethbridge Stewart in 15 Doctors Doctor Who

Harry Melling

as 2nd Doctor in Doctor Who (Series 17 19)

Jenna Coleman

as Clara Oswald in 15 Doctors Doctor Who