Don Chastain (September 2, 1935 – August 9, 2002) was an American actor, singer and screenwriter. He was married to Jill Diamond and had one son, Colin Chastain.
He worked in television in Los Angeles and New York and toured the United States and Canada with major productions. Leading ladies included Katharine Hepburn; Lauren Bacall; Barbara Stanwick The Big Valley, Episode: Hunter's Moon, S04, E12 (First Aired: Dec. 30, 1968); Debbie Reynolds (as her husband in the NBC situation comedy "The Debbie Reynolds Show," in the 1969-70 season); Tuesday Weld, Elizabeth Ashley, Barbara Eden (in the 1984 musical TV-movie remake of "Woman of The Year"); and Edie Adams.
In 1960, Chastain appeared as Gerald Wiley in the episode "Trial by Rope" of the ABC/Warner Brothers western series, Colt .45. The guest cast also included Pamela Duncan as Dora Lacey, and Lurene Tuttle as Lottie Strong.
Other series in which Chastain appeared as a guest star include The Real McCoys, Rhoda, The Rockford Files, All My Children, Hawaii Five-O, The West Wing, Gunsmoke, and Scrubs, The Big Valley.
Additionally, Chastain was a jazz singer and lyricist who served in the United States Army.