", and the actor later used it in his mid-1970s TV commercials for Panasonic cassette and 8-track tape players and in a 2021–2023 public announcement for Medicare.

Through a New York State funded program known as SEEK (Search for Education, Evaluation, and Knowledge), he continued his studies and entered into the field of radio engineering with WRVR.

In 1969, Walker began performing as a stand-up comedian and was eventually discovered by the casting director for Good Times, after making appearances on Rowan & Martin's Laugh In and on the Jack Paar Show.

He eventually released one stand-up comedy album during the height of his Good Times popularity: Dyn-o-mite on Buddah Records (5635).

[6] During 1975 Walker was also a weekend personality on contemporary R&B music station KAGB 103.9 FM licensed to Inglewood in the Los Angeles market.

In the 1990s, Walker returned to his radio roots hosting shows on WHIO, WOAI, WLS, and KKAR.

According to an appearance on The Wendy Williams Show on June 27, 2012, Walker stated he has never been married nor fathered children, but has had many girlfriends.

[8] In an interview with CNN, Walker described himself politically as a "realist independent" and stated that he opposed affirmative action, saying that it had outlived its usefulness.

He also said that he was against gay marriage on moral grounds, but believed its legalization should be passed, stating it was not worth fighting against.