[Camilla Fulci] was about 15 or so at the time. I tried to remind her of her riding along the set [of 1975's Four of the Apocalypse). She looked very… - Donald O'Brien

On one occasion, I tried to cash in the pay check, and they wouldn't give me the money, 'cause the check was for one `Donald O'Brien'. So I had to go to the Embassy and have my passport corrected, with `Donald' in parentheses.

I always preferred those movies I would have a large role in. If I had to choose between a small movie with a big role and a big movie with a small role, I'd take the one with more screen time. It's not very satisfying for an actor to get work and then ending up on the cutting room floor.

[O'Brien joined the Dublin Gate Theatre) where Orson Welles had started. Very few people know that he started in Dublin, most people think it was the Mercury in New York. James Mason, Peggy Cummins, Edward Mulhare - they all used to work for the Gate Theatre. My father was extremely furious when he found out that I was wasting my time being an actor. He also got wind of the fact that the star of the production (Micheál Mac Liammóir) was one of the biggest queens alive. He also played the part of Jago in Orson Welles' OTHELLO. This really didn't help. He cut my money off."