Eliza Clark is a writer and producer. Sister to actor Spencer Treat Clark. At Yale University, she was a member of the improvisational comedy group Viola Question, and the sketch comedy group The Fifth Humour. She has acted in minor parts in movies and commercials. In to August 29, 1990 she briefly played Jessica Buchanan on the soap opera One Life to Live. Clark has also directed many productions at Yale University since September 2003, including Wendy Wasserstein's Uncommon Women and Others, ...