He provided the voice for Igor, long-suffering butler to Count Duckula in the cartoon series of the same name. He also appeared as the waiter Garkbit in the television version of The Hitchhiker's Guide to the Galaxy, Théoden in the 1981 BBC Radio adaptation of The Lord of the Rings, as General Hermack in the 1969 Doctor Who serial The Space Pirates, and in Bachelor Father. For 45 years the long-running BBC Radio 4 series, The Archers, featured the voice of May as Nelson Gabriel, son of Walter Gabriel, making him (at the time of his death) the fourth-longest serving soap opera star in the world. He played the voice of Muzzy in Muzzy in Gondoland and Muzzy Comes Back.
