Blanchard appeared as Nancy, the American girlfriend of main character Jeremy Usborne (Robert Webb), in the second series of British sitcom Peep Show. She reprised this role in the fourth series (2007). She played Sally on the HBO show Flight of the Conchords"Women We Endorse: The Women of Flight of the Conchords" by Ross McCammon at www.esquire.com"Calum Henderson: What if Flight of the Conchords sucked?" by Calum Henderson at nzherald.co.nz and had a recurring role in the first season of the 2014 FX crime series Fargo."Elizabeth Rohm & J.R. Ramirez Join Starz’s ‘Power’; Rachel Blanchard In FX’s ‘Fargo’" by Nellie Andreeva at deadline.com From 2016-2020, Blanchard played Emma Trakarsky in comedy-drama You Me Her, a woman who enters into a polyamorous relationship with her husband and a younger woman."‘You Me Her’ Renewed for Seasons 2 and 3 by AT&T" by Laura Prudom at variety.com
