Frustrated with the racist harassment, culminating with her learning that the studio was withholding her fan mail, she submitted her resignation from
Patrouille du cosmos (1966) after consulting with series creator
Gene Roddenberry. She stated in several interviews that the harassment made her go back to work in theater until attending an NAACP fundraiser. The fundraiser was where a Star Trek fan was about to meet her for the first time and, to her astonishment, the fan turned out to be Dr.
Martin Luther King. King stated that his wife and children had seen Star Trek on TV and it was the only television series that he had approved of. He said that her role as the fourth in command of the USS Enterprise became a positive role model for African-Americans. She withdrew her resignation from the series when King personally convinced her that her role was too important as a breakthrough to leave.
