Marjean was originally cast as the Navigator in Babylon 5: A Call to Arms. She so impressed the producers that she was given the role of Dr. Sarah Chambers in the Crusade series. After Crusade, she joined the cast of BeastMaster, along with Monika and Emilie. In 1997, she starred with Brian Thompson and Carolyn Seymour in Mortal Kombat: Annihilation. She also appeared in Jurassic Park 2 with Robin Sachs and Ian Abercrombie.