Tom Arnold and Vanessa Marcil to Guest Star on Hawaii Five-0

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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.

Vanessa Marcil Image
Arnold, Tom

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+.

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