Veteran actress Jessica Walter is set to appear on CBS’ ‘The Big Bang Theory.

The actress will take on the role of Barbara, a rich donor whose grant to the
university science department relies on Leonard. Her episode is scheduled
to air in February, 2011.

Walter’s has appeared in numerous television series and films including: ‘Arrested Development’, ‘The Alfred Hitchcock Hour’, ‘Mission Impossible’, ‘The Magician’, ‘The New Adventures of Wonder Woman’, ‘Dr. Strange’, ‘The Pirates of Dark Water’, ‘Babylon 5’, ‘Dinosaurs’, ‘Touched By An Angel’, and ‘The Land Before Time’. Currently she is lending her voice talent to FX’s hilarious animated comedy ‘Archer’.

‘Archer’ clip:

Arrested Development clip: