Emily Ann Lloyd's acting career commenced at the tender age of two, with a commercial appearance for Olympus cameras. This marked the beginning of a long and prolific career, with numerous commercials and film appearances following suit. By the age of six, Emily Ann had already accumulated two feature films under her belt, including the notable Kindergarten Cop (1990) alongside Arnold Schwarzenegger. Her impressive resume continued to grow with guest star roles on Evening Shade (1990) and the short-lived series Princesses (1991),as well as a regular role on My Life and Times (1991). Emily Ann's busy schedule was temporarily put on hold when she began a four-season run on Knots Landing (1979) as Joan Van Ark and Ted Shackelford's twin, "Betsy Ewing", in the fall of 1990. When the series concluded in 1993, Emily Ann continued to work on three TV movies, including Overkill (1994),A Walton Thanksgiving Reunion (1993),and Tainted Blood (1993).
As Emily Ann entered her teenage years, she continued to make a name for herself in the acting world. At the age of 10, she guest-starred on Lois & Clark: The New Adventures of Superman (1993) before being directed by Ron Howard as Tom Hanks' youngest daughter in Apollo 13 (1995). In the spring of 1995, Emily Ann played "Brittany Lace Wedman" in Jodie Foster's Home for the Holidays (1995) and, in the summer, traveled to London to film Annie: A Royal Adventure! (1995) for ABC.
Early in 1996, Emily Ann was cast as "Sarah", the daughter of Mel Harris and stepdaughter of Jere Burns, in the blended family sitcom Something So Right (1996) for NBC. This was followed by a guest star appearance on the CBS drama Early Edition (1996) episode Faith (1997). In 1998, Emily Ann was cast in the independent film Miss Supreme Queen (1999) before taking a hiatus from acting to enjoy her final few years of high school and later attend university.