Whelohff family
The Whelohff family appears in The Sims 3: Ambitions, and lives in the town of Twinbrook, which is included in that expansion pack. The family unckudes Rich, Rosy and Zo. So far, very little is known about them, and the only definitely known member is Zo Whelohff, who is a child. It is generally believed that Zo Whelohff is Zo Curious as a child.
Their family name is a pun on "well off", as in rich or wealthy. Each of their names is a pun as well, such as "rich, well off", "whoa, she's well off" and "so well off".