Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: To answer this question, we should know that: She is best known for her roles as April Stevens Ewing on the American primetime television series Dallas (1986 -- 1991) and as Alex Cahill-Walker on the television series Walker, Texas Ranger (1993 -- 2001).
The question and answer:
Sheree Julienne Wilson (born on December 12, 1958) is an American actress, producer, businesswoman, and model. She is best known for her roles as April Stevens Ewing on the American primetime television series Dallas (1986 -- 1991) and as Alex Cahill-Walker on the television series Walker, Texas Ranger (1993 -- 2001).

Who plays alex cahill on walker texas ranger?
The answer is Sheree Julienne Wilson