Which character does Alex O'Loughlin play in "Hawaii Five-O"?
Steve McGarrett Steve McGarrett is a fictional character from "Hawaii Five-O" who serves as the leader of the Hawaii Five-0 (5−0) crime task force. McGarrett was originally played by Jack Lord and also by Alex O'Loughlin in the remake. He is partner to Detective Danny "Danno" Williams.
Herman Wedemeyer Herman John Wedemeyer (May 20, 1924 – January 25, 1999) was an American actor, football player, and politician. He is best known for portraying Sergeant/Detective "Duke" Lukela on the crime drama "Hawaii Five-O" (1972–1980). However, he appeared on the first episode of Hawaii Five-O as Lt. Balta of HPD.