Charles Sellier Jr., a producer and director of family-friendly films and television shows and the creator of the popular 1970s NBC series “The Life and Times of Grizzly Adams,” died Monday at his home near Coeur d’Alene, Idaho. He was 67.

Darryl Howard, a longtime friend, said Sellier died unexpectedly, but he did not specify the cause.

Almost always working independently, Sellier produced, and often wrote and directed, more than 30 movies and more than 200 television shows. But he was best known for writing the 1972 novel “The Life and Times of Grizzly Adams,” which he later adapted for a movie and the television series.