Jennifer Morrison made her debut in the 1994 Mark Rydell-directed film ‘Intersection’ where she played the role of ‘Meaghan Eastman.’ The film received mostly negative reviews from critics but still managed to gross over $61.3 million on a budget of $45 million. That same year, she also appeared in the American Christmas fantasy comedy-drama film ‘Miracle on 34th Street’ directed by Les Mayfield. The film received mostly positive reviews from critics. She next starred in films like ‘Stir of Echoes’ (1999), ‘Urban Legends: Final Cut’ (2000), ‘The Zeros’ (2001), ‘Design’ (2002), ‘Nantucket’ (2002), ‘100 Women’ (2002), ‘Grind’ (2003), and ‘Mall Cop’ (2004). In 2004, she joined the cast of the American medical drama television series ‘House’ where she played the role of ‘Dr. Allison Cameron.’ The series ran for 8 seasons and aired its final episode in 2012. Morrison also appeared in television series like ‘The Murder of Princess Diana’ (2007), ‘The Super Hero Squad Show’ (2009), ‘Chase’ (2010), and ‘How I Met Your Mother’ (2010-2014). In 2011, she became a part of the American fantasy adventure drama television series ‘Once Upon a Time.’ She portrayed Emma Swan in the show which earned her several awards nominations including 2 Teen Choice Award nominations. Morrison remained a part of the series until it went off-air in 2018.
In 2017, she made her directorial debut in the American comedy-drama film ‘Sun Dogs’ where she also starred as ‘Marie.’ The film earned praise from critics and earned an 80% approval rating on Rotten Tomatoes. She next appeared in films like ‘Assassination Nation’ (2018), ‘Back Roads’ (2018), ‘Alex & the List’ (2018), and ‘The Report’ (2019). She portrayed Juliet Huddy in the 2019 drama film ‘Bombshell’ directed by Jay Roach. The film was warmly received by critics and grossed over $61.4 million on a $32 million budget. That same year, she also starred as ‘Cassidy Sharp’ in the American drama television series ‘This Is Us’ created by Dan Fogelman. The sixth and final season of the series premiered on January 4, 2022.