Trackdown (1957-1959) Western 30 minutes Cast: Robert Culp as Ranger Hoby Gilman, Norman Leavitt, Ellen Corby, James Griffith and Gail Kobe Trackdown is an American Western series that aired on CBS for 70 episodes from October 4, 1957 to September 23, 1959 which starred Robert Culp as Texas Ranger Hoby Gilman, a gunslinger ...