That includes cult TV series The Knick and new movie The Confirmation, for which he had to tackle an American accent to play an alcoholic carpenter.
Owen admits he has wrestled with accents and dialects in the past and has come to realise his peers, who refuse to leave their characters on set while filming, had the right idea.
"Staying in an accent is something over the years I've learned and developed," he revealed.
"I used to think it was really pretentious when people did that, but actually it's quite important for rhythm and tone; to switch in and out and to turn it on and off can start to get really difficult.
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"It's not just the accent. It's the tone and feel of the part you're playing and the environment you're in, so I got over my shyness of doing that and realised it was part of the job and a necessary thing."
- AAP