Martha MacIsaac is a Canadian actress. She had her career beginnings in the late 1990s, debuting as the lead Emily Byrd Starr in the Canadian series Emily of New Moon. She next made her cinematic debut in the 2003 film This Time Around. Her next role was in 2004’s Suburban Madness and 2005’s I Do, They Don’t. In 2007, she played Becca in the comedy film Superbad. She went on to lend her voice for the role of Melosa in the animated series Di-Gata Defenders. She also worked as a voice actress on Magi-Nation and Friends and Heroes. From 2010 to 2011, she played Dana Stockwell in the TV show Greek. She next starred as Becca Gilchrist in 1600 Penn and played Kate Warne in the Canadian show The Pinkertons. More recently, she portrayed Jane Bartkowicz in Battle of the Sexes.