Demond Wilson, who found fame in the 1970s playing Lamont on “Sanford and Son” and went on to become a minister, has died. He was 79.

Mark Goldman, a publicist for Wilson, confirmed to The Associated Press that he died following complications from cancer on Friday.

“A devoted father, actor, author, and minister, Demond lived a life rooted in faith, service, and compassion. Through his work on screen, his writing, and his ministry, he sought to uplift others and leave a meaningful impact on the communities he served,” Goldman said in an emailed statement.

Wilson was best known as the son of Redd Foxx’s comically cantankerous Fred Sanford character in a sitcom that was among the first to feature a mostly Black cast when it began airing in 1972.

The thoughtful Lamont had to put up with his junkyard owner father’s schemes, bigotry and insults — most famously, and repeatedly, “You big dummy!”

The show was a hit for its six seasons on NBC but ended when ABC offered Foxx a variety show.

Wilson was born in Valdosta, Ga., and grew up in the Harlem section of Manhattan, according to the biography on his website.

He served in the U.S. Army in Vietnam and was wounded there, and he returned to New York and acted on stage before heading to Hollywood.

A guest appearance on “All in the Family” in 1971 led to his best-known role. Norman Lear produced both shows.