Suggestions by @benmiller2

Terry Molloy

as Davros in Doctor Who Season 28 (1991)

Score: +1

Nicholas Briggs

as The Daleks in Doctor Who Season 28 (1991)

Score: +1

Craig Charles

as Hex in Doctor Who Season 28 (1991)

Score: +1

Kate Winslet

as Raine Creevy in Doctor Who Season 28 (1991)

Score: +1

Richard E. Grant

as The Doctor in Doctor Who Season 28 (1991)

Score: +1

Richard Egan

as The Doctor in Doctor Who Season 28 (1991)

Score: -1

Andrew Cartmel

as Script Editor in Doctor Who season 27 (1990)

Score: +1

John Nathan-Turner

as Producer in Doctor Who season 27 (1990)

Score: +1

Richard E. Grant

as The 8th Doctor in Doctor Who season 27 (1990)

Score: +1

Anthony Ainley

as The Master in Doctor Who season 27 (1990)

Score: +1

Angela Bruce

as Brigadier Winifred Bambera in Doctor Who season 27 (1990)

Score: +1

Craig Charles

as Hex in Doctor Who season 27 (1990)

Score: +1

Kate Winslet

as Raine Creevy in Doctor Who season 27 (1990)

Score: +1

Sophie Aldred

as Ace in Doctor Who season 27 (1990)

Score: +1

Sylvester McCoy

as The 7th Doctor in Doctor Who season 27 (1990)

Score: +1