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Ashley Tisdale Truth Be Told

Truth Be Told on NBC: Ashley Tisdale Cast as Mark-Paul Gosselaar's Kid Sis

Mark-Paul Gosselaar and Ashley Tisdale as siblings? Sold.

NBC’s new fall sitcom Truth Be Told has tapped Tisdale to recur as the younger sister of Gosselaar’s leading man Mitch, TVLine has learned exclusively.

Tisdale’s character, Sam, is as single as she is self-involved. She speaks her mind and lives like the rules don’t apply to her. In all the ways Mitch strives to make the world a better place, Sam strives to make the world more her place. They have one common family trait: they’re both exhausting.

Tisdale is currently starring in TBS’ rookie sitcom Clipped (which wraps its first season tonight).

Truth Be Told — FKA People Are Talking — follows two diverse couples (Gosselaar and Vanessa Lachey, and Tone Bell and Bresha Webb) who are both neighbors and best friends. As they go through life side-by-side, they can’t help but analyze and obsess about everything. From topics like sex and race, to the fact that the trusted new babysitter might just be a porn star, nothing is out of bounds for this wildly outspoken foursome.

The series is set to premiere Friday, Oct. 16 at 8:30/7:30c.