Suggestions by @discworldfan123

Helena Bonham Carter

as Mrs cake in Reaper Man

Score: +1

Tom Vaughan-Lawlor

as The Auditors in Reaper Man

Score: +1

Matt Lucas

as Count Notfaroutoe in Reaper Man

Score: 0

Lucy Davis

as Countess Notfaroutoe in Reaper Man

Score: +1

Karl Johnson

as Windle Poons in Reaper Man

Score: +1

Alan Tudyk

as Death of Rats (voice) in Reaper Man

Score: +1

Brian Blessed

as Mustrum Ridcully in Reaper Man

Score: +1

Angela Lansbury

as Miss Flitworth in Reaper Man

Score: +1

Brian Cox

as Death/Bill Door in Reaper Man

Score: +1