After earning a BA in Fine Art from Boston University, Barbara Cassel moved to Chicago, and then to New York City, where she worked on contract interior design. In 1979 she moved to Los Angeles and continued her work in interior design. In 1988 she got a call to be a set decorator buyer on her first feature film. Soon after, she began decorating for television and features. She is still loving every minute of her work. Cassel has worked on many series, including Without a Trace, Boston Public, Felicity, Vegas, Hung and Scandal.
In 2007 she received a Primetime Emmy for her work on Tony Bennett: An American Classic.
She has been a member of the Art Directors/Set Decorators Peer Group Executive Committee for more than 9 years. She is now serving as the Set Decorators Governor. In 2014 she was vice-chair of the Emmy's Governors Ball. In 2015 she was co-chair of the Emmy's Governors Ball, which she will co-chair again in 2016.