Louan Gideon (November 12, 1955 – February 3, 2014) was an American actress best known for her role as antagonist Danielle Atron on Nickelodeon's The Secret World of Alex Mack.

Born in Erath County, Texas, Gideon was a jazz singer in Europe and Asia before becoming an actress in the US.

Gideon earned Bachelor of Arts degree at Baylor University in Waco, Texas (1978); she majored in oral communications (radio-television-film).

[citation needed] In 2006, she left Los Angeles for the Blue Ridge Mountains of Asheville, North Carolina, where she continued her career as a writer and stage actress.

She successfully battled breast cancer in 2009, and in 2011 married her long-time partner, veteran entertainment executive Walt Borchers.