Walker was then cast as Alex Olanov Hesser Buchanan Buchanan on "One Life to Live". Alex was initially an FBI agent, but became involved with the mob. Walker had the longest run in this role, playing Alex from 1990 to 1997, with several return visits in 2001 and 2002. She made additional appearances as Alex on "One Life to Live" in August 2007 for the show's 9,999th and 10,000th episodes, Her character later returned again on November 2, 2007 for a brief run and again on January 2, 2009, March 15, 2011 and November 17, 2011.