Kenyon co-starred as Des Smith in the syndicated television drama Crunch and Des and portrayed Cashbox Potter in the syndicated adventure series Major Del Conway of the Flying Tigers. Among the many television series in which he guest starred are the westerns: The Rifleman, Colt.45, Yancy Derringer, Have Gun-Will Travel, The Tall Man, Gunsmoke, and Bonanza. In 1960, Kenyon was cast as a pre-presidential Abraham Lincoln in the episode "No Bridge on the River" of the NBC western series, Riverboat. In the story line, Grey Holden sues the railroad when his vessel, the Enterprise, strikes a rail bridge atop the Mississippi River on a dark, stormy night; Lincoln is the attorney representing the railroad. Tyler McVey is cast as a judge and Denver Pyle as Jim Bledsoe. In 1961, Kenyon was cast in the role of Ritter on The Americans, a 17-episode NBC series about how the American Civil War divided families. In the 1963-1964 season, Kenyon was cast as Shep Baggott in a recurring role in five episodes of the ABC western series, The Travels of Jaimie McPheeters. Other series in which Kenyon appeared include: Richard Diamond, Private Detective, The Fugitive, Room for One More, All in the Family, The Dick Van Dyke Show, That Girl, The Partridge Family, Hogan's Heroes, Adam-12, Kung Fu, Peter Gunn, Quincy M.E., Knots Landing, Designing Women and The Twilight Zone. In 1971 Kenyon appeared as Constable Stokes in "The Men From Shiloh", he portrays General Jonathan M. Wainwright, who survived spending most of World War II in a Japanese POW camp. His other films included Al Capone, Easy Come, Easy Go, Tom Sawyer, Breezy, When Time Ran Out, The Loch Ness Horror, Lifepod, and Down on Us. He voiced Jon Arbuckle in the first Garfield animated television special, Here Comes Garfield.
Stage productions
Kenyon performed in the world premierestage production of Edna St. Vincent Millay's Conversation at Midnight in Los Angeles, in 1961, in a cast that included James Coburn, Jack Albertson, Eduard Franz and John Marley. The play opened at the Coronet Theatre, but was so successful that after two months it moved to the larger 550-seat Civic Playhouse, running for 6 months altogether. Robert Gist directed the production by Worley Thorne in association with Susan Davis. Three years later, Gist and Thorne re-created the production, which again included Kenyon, in Broadway's Billy Rose Theatre, where--under-financed, unable to afford promotion, or wait for word-of-mouth to kick in, and lacking the charisma and virtuoso acting of James Coburn--it ran for just 8 previews and four performances,. Kenyon also appeared in regional theatre in Los Angeles.
Death
Kenyon died of kidney cancer at the age of 87 at his home in Los Angeles.