Orchard was educated at Shrewsbury School and the Guildhall School of Music and Drama. He appeared as the flamboyant Duke of Montague, a cousin of Prince Edward, in the Cinderella film, The Slipper and the Rose (1976). He had a regular slot on Spike Milligan's The World of Beachcomber, a TV version of the "Beachcomber" pieces by J. B. Morton, appearing as the poet Roland Milk. His customary role was that of a gangling and effete – and sometimes effeminate – dandy. He played Snodgrass in the TV musical Pickwick for the BBC in 1969, and appeared in several of the comedy Carry On films and the sex comedy Adventures of a Private Eye (1977).[3] He appeared on BBC television as the "Minister for the Arts" in the episode of The Goodies entitled "Culture for the Masses"; and as one of the "mechanicals" in a production of A Midsummer Night's Dream. He played teacher Mr Oliver Pettigrew in the TV series Whack-O! in 1971 (the role having been created by Arthur Howard in 1956–60). He played Cornelius Button in the 1971 London Weekend Television children's serial Grasshopper Island as an eccentric grasshopper expert who had lived on Grasshopper Island for many years.
1979The London Connection as Driscoll
1978Revenge of the Pink Panther as Hospital Clerk
1977That's Carry On! as Various Characters
1977The Prince and the Pauper as . St.John
1977Adventures of a Private Eye as Police Cyclist
1976Keep It Up Downstairs as Bishop
1976The Slipper and the Rose as Montague
1975The Adventure of Sherlock Holmes' Smarter Brother as Man in Tails
1974Man About the House as Producer
1972Bless This House as Tom Hobbs
1972Anoop and the Elephant as Mr Skinner
1971Carry On Henry as Duc de Poncenay
1970Cucumber Castle as Julian the Lord Chamberlaine
1970Perfect Friday as Thompson
1970The Goodies (1 Episode) as Unknown
1970Futtocks End as The Twit
1969The Magnificent Six and ½: It's Not Cricket as Employer
1969Pickwick as Augustus Snodgrass
1969The Nine Ages of Nakedness as The Pharaoh (segment "The Egyptians")
1969Can Heironymus Merkin Ever Forget Mercy Humppe and Find True Happiness? as Red Cardinal
1968Ooh La La! (1 Episode) as Dardenboeut
1967Carry On Doctor as Fred
1967Carry On Follow That Camel as Doctor
1967Cop-Out as Policeman (uncredited)
1964Comedy Workshop: Love and Maud Carver as His Lordship / Guards Officer
1962Kill or Cure as PC Lofthouse
1962Crooks Anonymous as 1st Jeweller
1962Operation Stogie as Major Soames
1961Three on a Spree as Walker
1959The Great Van Robbery as Brady
1956Whack-O! (6 Episodes) as Oliver Pettigrew