On TV, Ommanney appeared in Get Some In!, Red Letter Day, The Dragon's Opponent, and Jane Eyre, in which he played Stephanie Beacham's onscreen brother Lord Ingram.
In 1973/74, Ommanney spent a year in the West End at the Savoy Theatre in A Ghost on Tiptoe [1] which starred Robert Morley.
His final appearance on stage was at the Citizens Theatre in Glasgow, alongside Pierce Brosnan and Ciaran Hinds in the world premiere[2] of Noël Coward's Semi-Monde.
Three Up Two Down has been optioned four times by American TV: in 1989, Ommanney spent five months in Los Angeles working on a pilot of the show with Winifred Hervey for CBS, where it became Five Up Two Down.
He ghosted film-maker Daryl Goodrich's account of his promotional films that helped secure the 2012 Olympic Games for London.