First episode of the series where Dr. Rudy Wells is played by actor Martin E. Brooks, the third actor to play the role.
After the character of Jaime Sommers was created and then killed off in a two-part story the previous season, public reaction to the character was so strong that the producers decided to bring her back and gave her her own spin-off series. "The Bionic Woman" show would premiere four months after this story was shown.
Martin E. Brooks' hair is thinner and more gray in his first appearances as Dr. Rudy Wells, but in later episodes throughout the series he starts wearing a hairpiece which is thicker and darker.