From Wikipedia, the free encyclopedia. Luke Roberts (born 1977) is an English actor, most notable for his role as Joseph Byrne on Holby City. He has previously appeared as Captain Dan Pieterson in the Sky1 drama Mile High and before that had a principal role in the short-lived third series of the TV classic Crossroads. His character Joseph suffers with OCD
Roberts has an unspecified role in Pirates of the Caribbean: On Stranger Tides.
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