He is probably best remembered for playing anaesthetist "Ugly John" Black in the earlier episodes of M*A*South*H. Orchard guest starred as Sergeant Walters on Hogan"s Heroes Season 1 entitled "The Prisoner"s Prisoner". He also played the minor character "Billet" in a guest spot in Hogan"s Heroes Season 2 entitled "Klinks Rocket".
Lastly, he appeared in the Hogan"s Heroes season four episode "My Favourite Prisoner" guest starring as Captain Sears.
Orchard returned to M*A*South*H years after Ugly John was dropped from the series, albeit only once, playing Muldoon, an Australian non-commissioned officer and regular at Rosie"s Bar who allowed the establishment to operate provided he received free liquor when he ordered "coffee". Major Winchester, who was tending bar in that episode, was unaware of this little game and had the audacity to charge Muldoon for his drink, soon after which Rosie"s was temporarily closed down.
Orchard also played a Kaos agent, Mr Snead (a take-off from The Avengers) on the season 3 Get Smart episode "Run Robot Run".