text: He starred in The Proud Ones (1956) at Fox, Back from Eternity (1956) at RKO, directed by John Farrow. He appeared in Men in War (1957) for Anthony Mann, made at Mann's company Security Pictures.
  Television
  Ryan made his television debut in 1955 as Abraham Lincoln in the Screen Director's Playhouse adaptation of Christopher Morley's story "Lincoln's Doctor's Dog." As he explained to reporters, despite financial considerations, Ryan preferred to steer clear of any commitment to a TV series:
  The only money in TV is in the series, and I want to stay out of those. Sure, I might make a million or so in a series, but I'd wind up being 'Sidewinder Sam' for the rest of my life.
  Ryan remained true to these convictions, appearing in many television series, but always as a guest star. He was in Screen Directors Playhouse, Mr. Adams and Eve, Goodyear Theatre, Alcoa Theatre, Playhouse 90 (playing The Great Gatsby), and Zane Grey Theater.
  He continued to star in features, however, including God's Little Acre (1958) for Mann and Security Pictures, Lonelyhearts (1959) written and produced by Schary, Day of the Outlaw (1959) for Security Pictures, and Odds Against Tomorrow (1959) for Wise.
  1960s
  In the summer of 1960 Ryan starred opposite Katharine Hepburn at the American Shakespeare Theatre in Stratford, Connecticut, playing Antony to Hepburn's Cleopatra.