who did debbie allen play on a different world
A Different World Producer/director Debbie Allen is the real-life sister of Phylicia Rashad. Allen made one guest appearance on The Cosby Show, playing an aggressive aerobics instructor who helps Clair slim down for a special occasion. Allen appeared in later seasons in a recurring role as Whitley's psychiatrist. Dwayne and Whitley also visited the Huxtable home in an episode featuring the revelation that Denise had married and would not return to Hillman.
Martha Byrne Mary Martha Byrne (born December 23, 1969) is an American actress, singer and television writer. She played the role of Lily Walsh Snyder on the soap opera As the World Turns from 1985 to 1989, then again from 1993 to 2008; as well as, from 2000 to 2003, Lily's twin sister, Rose D'Angelo. Byrne has also appeared in other stage, television and movie roles, including the title role in the 1983 film Anna to the Infinite Power.