Claire Van Der Boom

Claire Van Der Boom has been cast as Danno's ex-wife on Hawaii Five-0, Entertainment Weekly reports.

The Australian actress, who recently appeared in HBO's The Pacific, will play Rachel, Danno's as-yet-unseen ex, with whom Danno regularly squabbles over the phone.

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As previously reported, Rachel and Danno will find something new to fight about when McGarrett asks to use her home as a command center during a stakeout.

Van Der Boom will first appear in a November episode. CBS did not immediately respond to TVGuide.com's request for comment.