Samuel "Sam" Denning is the new Governor of Hawaii who took over the position after his predecessor, Governor Pat Jameson was shot dead at the hands of crime boss, Wo Fat.
Biography
Pre-Series
Hawaii Five-0 Season 2

Denning in the Hawaii Five-0 Season 2 premiere episode, "Ha'i'ole"- (Unbreakable).
Denning made his debut appearance in the Season 2 premiere episode, Ha'i'ole where he reinstated Lieutenant Commander Steve McGarret, Detective Danny Williams and Lieutenant Chin Ho Kelly to their original positions after Steve was cleared of killing Governor Jameson.
In Ua Lawe Wale, Denning also assigned Agent Lori Weston to the Hawaii Five-0 Task Force.
Season 3
Season 4
Trivia
- His name is a reference to actor Richard Denning, who played Governor Paul Jameson in the 1968 Five-O series.