text: Europe Ryan could be seen in The Crooked Road (1965) and The Secret Agents (1965), then the all-star Battle of the Bulge (1965) for Phil Yordan and The Professionals (1966) for Brooks.
  Ryan supported Sid Caesar in The Busy Body (1967) and had a key supporting part in The Dirty Dozen (1967) for Robert Aldrich and Hour of the Gun (1967), playing Ike Clanton for John Sturges.
  Ryan played Othello (1967) in Nottingham, England.
  Ryan went to Europe for A Minute to Pray, A Second to Die (1968) and Anzio (1969) for Dmytryk. Ryan had the lead in Captain Nemo and the Underwater City (1969).
  Along with William Holden and Ernest Borgnine, Ryan was goaded by Sam Peckinpah during the making of The Wild Bunch (1969). After production in Mexico moved from Parras to Torreón, his request to take a few days off to campaign for Eugene McCarthy during the 1968 Democratic Party presidential primaries was denied by Peckinpah. In his biography Golden Boy: The Untold Story of William Holden, Bob Thomas wrote, "For ten days, Ryan reported to the set in makeup and costume. He never played a scene. Finally he grabbed Peckinpah by the shirtfront and growled, 'I'll do anything you ask me to do in front of the camera, because I'm a professional. But you open your mouth to me off the set, and I'll knock your teeth in.