No, you've lost me, because you're apparently unaware that Gary Bond briefly played Wimsey on BBC radio episodes. From the BBC site:

"Gary Bond starred as Lord Peter Wimsey and John Cater as Bunter in two single-episode BBC Radio 4 adaptations: The Nine Tailors on 25 December 1986 and Whose Body on 26 December 1987. Simon Russell Beale played Wimsey in an adaptation of Strong Poison dramatised by Michael Bakewell in 1999."