 
 <translate> To answer this question, we should know that: Pernell Roberts portrayed the title character, a lovable surgeon who became a mentor and father figure in San Francisco, California.
Therefore, the answer is Pernell Roberts. <ibo> Iji zaa ajụjụ a, anyị kwesịrị ịmara nke a: Pernell Roberts mere ihe nkiri nke aha ya bụ, dọkịta na-awa ahụ a hụrụ n'anya nke ghọrọ onye nkụzi na nna na San Francisco, California. Ya mere, azịza ya bụ Pernell Roberts. 