Which character does Alex O'Loughlin play in "Hawaii Five-O"?
Alex O'Loughlin Alex O'Loughlin (born 24 August 1976) is an Australian actor, who plays Lieutenant Commander Steve McGarrett on CBS' remake of the TV series "Hawaii Five-0". He had starring roles in the films "Oyster Farmer" (2004) and "The Back-up Plan" (2010), as well as on such television series as "Moonlight" (2008) and "Three Rivers" (2009).
Mac McDonald Mac McDonald (born Terence McDonald; 18 June 1949) is an American actor. He is known for playing Captain Hollister on the BBC TV series "Red Dwarf" and frequently plays American characters in other British TV shows. He has also had many movie roles in films such as "Aliens", "Batman" and "The Fifth Element", all of which were filmed in London.