We at The Frisky get kinda excited about guest starring roles. And the couple that guest stars together, stays together—or something like that. Apparently, Nick Lachey and Vanessa Minnillo will be co-stars in an upcoming episode of "Hawaii Five-O." Vanessa will play Susan, a deckhand on a cruise ship that is taken hostage by pirates. (Arrrrrrggh.) And Nick will play her fiance because, you know, that's totally a stretch. The episode will air in February. I guess we should expect a Jessica Simpson and Eric Johnson episode of "Glee" shortly thereafter? [People]
In Nick and Vanessa's honor, here's a look at other couples who have guest starred as a duo.