Tom Arnold and Vanessa Marcil to Guest Star on Hawaii Five-0
Matt Richenthal at .A couple of familiar faces will soon stop by Hawaii Five-0.
First, Vanessa Marcil will hit the beach on a November installment of the CBS hit, playing a therapist McGarrett believes is involved in a murder.
The actress Tweeted the news herself this week when she made a reference to being on set with Christine Lahti.
Executive Producer Peter Lenkov, meanwhile, tells TV Guide Magazine that Tom Arnold will appear as a villain on the ninth episode of Hawaii Five-0 Season 3.
In what capacity?
"Danny and McGarrett go on a Girl Scout outing and come face to face with Tom," previews Lenkov mysteriously, adding that Danny's daughter is a member of the troupe.
Hawaii Five-0 runs it back with a new episode this Monday at 10/9c on CBS.
Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.