Claim: Tatiana Maslany refused to star in Heartland.

Tatiana Gabriele Maslany -LRB- born September 22 , 1985 -RRB- is a Canadian actress . She has starred in television series such as The Nativity , Being Erica , and Heartland . In 2013 , she won the ACTRA Award for her portrayal as Claire in the film Picture Day and the Phillip Borsos Award for her performance in the film Cas and Dylan . Other notable films starring Maslany are Diary of the Dead and Eastern Promises , the latter of which she narrated .   Since March 2013 , Maslany has played the lead in the Canadian science fiction thriller series Orphan Black . She has received widespread critical acclaim for her performance , winning the Primetime Emmy Award -LRB- 2016 -RRB- , the TCA Award -LRB- 2013 -RRB- , two Critics ' Choice Television Awards -LRB- 2013 & 2014 -RRB- , and four Canadian Screen Awards -LRB- 2014 -- 2017 -RRB- , in addition to receiving a Golden Globe Award and Screen Actors Guild Award nomination .   After winning the award for Best Lead Actress in a Drama Series at the 2016 Primetime Emmy Awards for her role on Orphan Black , Maslany became the first Canadian actor from a Canadian series to win an Emmy Award in a key dramatic category .