Born in the Brooklyn borough of New York City, Logan is the eldest of seven children born to bank executive Robert Logan, Senior Young "R.J." was active in high school sports. He received a baseball scholarship to the University of Arizona at Tucson.
There he was spotted by a Warner Brothers talent agent.
Logan is recognized by many for his roles in family-oriented films such as the Wilderness Family film series. From 1961 to 1963, Logan played J.R. Hale, the young valet parking attendant on American Broadcasting Company"s 77 Sunset Strip.
Logan succeeded the previous attendant, Kookie, played by Edward Byrnes, who in the story line became a full-fledged investigator. From 1965-1966, Logan played the part of Jericho Jones on National Broadcasting Company"s Daniel Boone.