Ramsey was born in Long Beach, California, the son of Harriet Lillian (née Kilmartin) and Captain Logan Carlisle Ramsey Sr., USN,[1] a Naval Aviator who raised the alarm during the attack on Pearl Harbor and later became the captain of the aircraft carrier USS Block Island (CVE-21).

[2] Logan's Broadway credits include The Great Indoors (1965), In the Summer House (1953), The High Ground (1950),[3] and The Devil's Disciple (1950).

Ramsey appeared on, among many others: The Edge of Night; Star Trek (as Proconsul Claudius Marcus in "Bread and Circuses", 1968); Mission: Impossible; Here Come the Brides; Hawaii Five-O; M*A*S*H; Maude; Charlie's Angels; Quincy, M.E.

; Mork & Mindy; Battlestar Galactica (as Moore in "Experiment in Terra", 1979); Knight Rider; Night Court; Highway to Heaven and the miniseries Testimony of Two Men and The Winds of War.

(1971), Jump (1971), John Witter in the original Walking Tall film trilogy, Some Call It Loving (1973), Busting (1974), Cornbread, Earl and Me (1975), Treasure of Matecumbe (1976), Mean Dog Blues (1978), Any Which Way You Can (1980, as the husband of his real wife Anne Ramsey), The Beast Within (1982), Joysticks (1983), Scrooged (1988, with his wife Anne Ramsey), and Pass the Ammo (1988).