Known to legions of fans as Donna Culver Krebbs on the popular series Dallas, Susan Howard was born in Texas, where she lived until her second year of college, dropping out of the University of Texas and moving to L.A. to pursue her acting career. She began with numerous guest appearances, showing up on various shows throughout the late '60s, including Star Trek and Bonanza. Following a Golden Globe-winning role on the series Petrocelli, the actress accepted a guest appearance on Dallas, which turned out to be such a hit that the network expanded her character to make her part of th regular cast. She stayed with the show for nine years, until the network declined to renew her contract in 1987. Howard subsequently retired from the screen, with the exception of an appearance in 1993's Come the Morning.