
Randy Couture returns as Jason Duclair, an arsonist who first appeared in Season 5's "Nanahu."
Couture was an American mixed martial artist known for his work with the Ultimate Fighting Championship (UFC) franchise. Couture is the only person over the age of 40 to have won a UFC championship, holding four titles.
Click throught the gallery for more behind-the-scenes photos and facts about Hawaii Five-0's "Lehu a Lehu (Ashes to Ashes)" (Season 6, Episode 2).
Click throught the gallery for more behind-the-scenes photos and facts about Hawaii Five-0's "Lehu a Lehu (Ashes to Ashes)" (Season 6, Episode 2).