After immigrating to Australia, he worked primarily in theatre in numerous productions as both an actor and director, but became best known in TV soap opera Number 96, firstly as amateur inventor Les Whittaker, who was a comedy character opposite Sheila Kennelly, his character perished in the infamous bomb blast storyline, after ratings of the series fell and it was decided to write out some of the long term older cast members, however producers realized that the decision was a mistake, and McDougall was subsequently brought back, albeit as the less successful character of Les's aristocratic brother Andrew Whittaker, the Lord McCraddenow.

[1] McDougall started acting professionally in 1936 working in various facets of the entertainment industry, including radio and stage.

McDougall found his widest audience through his role of amateur inventor and hospital orderly Les Whittaker, husband to brassy barmaid Norma (Sheila Kennelly), in hit soap opera Number 96.

It had been decided that Les's constant crazy inventions were becoming too silly, and that his death would open up the character of Norma to new romances and other storyline's.

post-96 McDougall appeared in a small role in the film The Fourth Wish starring John Meillon and thriller The Killing of Angel Street and acted in other Australian television films and had guest roles in such drama television series as Chopper Squad, Prisoner and A Country Practice, and a guest part in sitcom Mother and Son.