<P> The show premiered on NBC on March 5 , 2010 where it ran for three seasons before being cancelled in 2012 . It was then picked up by TLC , where it has aired for six additional seasons . In August 2017 , TLC renewed the series for a tenth season that is set to premiere on May 21 , 2018 and feature Hilary Duff , Jean Smart , Jon Cryer , Laverne Cox , Megan Mullally , and Molly Shannon . </P>
<P> The show premiered on NBC on March 5 , 2010 where it ran for three seasons before being cancelled in 2012 . It was then picked up by TLC , where it has aired for six additional seasons . In August 2017 , TLC renewed the series for a tenth season that is set to premiere on May 21 , 2018 and feature Hilary Duff , Jean Smart , Jon Cryer , Laverne Cox , Megan Mullally , and Molly Shannon . </P>
when does who do you think you are return in 2018
when does who do you think you are return in 2018
May 21 , 2018
May 21 , 2018