| The Return of the Beverly Hillbillies | 1981 | Jed Clampett | TV Movie |
| The Paradise Connection | 1979 | Stuart Douglas | TV Movie |
| Leave Yesterday Behind | 1978 | Doc | TV Movie |
| The Bastard | 1978 | Benjamin Edes | TV Show |
| The Critical List | 1978 | Charles Sprague | TV Movie |
| Smash-Up on Interstate 5 | 1976 | Al Pearson | TV Movie |
| The Tiny Tree | 1975 | Squire Badger (Narrator) (voice) | TV Movie |
| The Horror at 37,000 Feet | 1973 | Glenn Farlee | TV Movie |
| The President's Plane Is Missing | 1973 | Vice President Kermit Madigan | TV Movie |
| Tom Sawyer | 1973 | Muff Potter | TV Movie |
| Barnaby Jones | 1973 | Barnaby Jones | TV Show |
| The Daughters of Joshua Cabe | 1972 | Joshua Cabe | TV Movie |
| Alias Smith and Jones | 1971 | George Austin, Phil Archer | TV Show |
| Cannon | 1971 | Barnaby Jones | TV Show |
| The Andersonville Trial | 1970 | Dr. John Bates | TV Movie |
| Night Gallery | 1969 | Doc Soames (segment "The Waiting Room") | TV Show |
| The One and Only, Genuine, Original Family Band | 1968 | Calvin Bower | Movie |
| Hawaii Five-O | 1968 | Professor Ambrose Pierce | TV Show |
| Mail Order Bride | 1964 | Will Lane | Movie |
| Mr. Kingston | 1964 | TV Movie |
| The Interns | 1962 | Dr. Sidney Wohl | Movie |
| The Beverly Hillbillies | 1962 | Jed Clampett | TV Show |
| Westinghouse Presents: That's Where the Town Is Going | 1962 | George Prebble | TV Movie |
| Breakfast at Tiffany's | 1961 | Doc Golightly | Movie |
| Bus Stop | 1961 | Virge Blessing | TV Show |
| Gunslinger | 1961 | Jed Spangler | TV Show |
| King of Diamonds | 1961 | Anderson | TV Show |
| Checkmate | 1960 | Pete O'Mara | TV Show |
| The Andy Griffith Show | 1960 | David Browne | TV Show |
| The Barbara Stanwyck Show | 1960 | Dr. Mark Carroll | TV Show |
| The Best of the Post | 1960 | The Trumpet Man | TV Show |
| Adventures in Paradise | 1959 | Ben Curtis | TV Show |
| Black Saddle | 1959 | Gurney Rhodes | TV Show |
| Bonanza | 1959 | Cactus Murphy, Sheriff Jesse Sanders | TV Show |
| Johnny Ringo | 1959 | Sample | TV Show |
| Lock Up | 1959 | Curly Simmons | TV Show |
| Rawhide | 1959 | George Stimson, Will Kinch | TV Show |
| Riverboat | 1959 | Niles Cox | TV Show |
| The Twilight Zone | 1959 | Jimbo Cobb | TV Show |
| 77 Sunset Strip | 1958 | Baxter Kellogg | TV Show |
| Bronco | 1958 | Sergeant Cass | TV Show |
| Northwest Passage | 1958 | Hunk Marriner, Sergeant Hunk Marriner | TV Show |
| Westinghouse Desilu Playhouse | 1958 | Bret Malone | TV Show |
| Have Gun - Will Travel | 1957 | Bram Holden, Marshal Elmo Crane | TV Show |
| Maverick | 1957 | Nero Lyme, Rumsey Plumb, Sheriff Scratch Madden | TV Show |
| Tales of Wells Fargo | 1957 | Daniel J. Ferguson, Lou Reese | TV Show |
| Attack | 1956 | Sfc. Tolliver - Fox Co. | Movie |
| Between Heaven and Hell | 1956 | Pvt. Willie Crawford | Movie |
| Playhouse 90 | 1956 | Froelich, Phil | TV Show |
| Corky and White Shadow | 1956 | Sheriff Matt Brady, Sheriff Matthew Brady | TV Show |
| Strange Stories | 1956 | TV Show |
| Davy Crockett: King of the Wild Frontier | 1955 | George Russel | Movie |
| Gunsmoke | 1955 | Drago, Hannibal, Quimby | TV Show |
| Screen Directors Playhouse | 1955 | Fred | TV Show |
| The Mickey Mouse Club | 1955 | serial 'Corky and White Shadow', Sheriff Matthew Brady | TV Show |
| The Eddie Cantor Comedy Theater | 1955 | Mike Applegate | TV Show |
| Night People | 1954 | Sgt. Eddie McColloch | Movie |
| Red Garters | 1954 | Ginger Pete | Movie |
| Climax! | 1954 | Ben, Gaffney | TV Show |
| Studio 57 | 1954 | Ira Farr | TV Show |
| The Magical World of Disney | 1954 | George Russel | TV Show |
| G.E. True Theater | 1953 | Pa Jericho | TV Show |
| Omnibus | 1952 | Pat Humbert (segment "The House") | TV Show |
| Curtain Call | 1952 | TV Show |
| Broadway Television Theatre | 1952 | Henry Williams, Preston Mitchell, William Magee | TV Show |
| Chevron Theatre | 1952 | TV Show |
| Schlitz Playhouse | 1951 | Rainspout Jones | TV Show |
| Rodeo King and the Senorita | 1951 | Muscles Benton | Movie |
| Silver City Bonanza | 1951 | Gabe Horne | Movie |
| Gruen Guild Theater | 1951 | The Genie | TV Show |
| Hollywood Opening Night | 1951 | Mail Carrier | TV Show |
| Thunder in God's Country | 1951 | Deputy Happy Hooper | Movie |
| Utah Wagon Train | 1951 | Snooper | Movie |
| Personal Appearance Theater | 1951 | Hugo Beam | TV Show |
| The Andrews Sisters | 1951 | Tex | TV Movie |
| The Andrew Sisters: Hollywood Music Shop | 1951 | TV Movie |
| Lux Video Theatre | 1950 | Paul | TV Show |
| Under Mexicali Skies | 1950 | Homer Oglethorpe | Movie |
| Stars Over Hollywood | 1950 | Mail Carrier | TV Show |
| The Chevrolet Tele-Theatre | 1948 | TV Show |
| Sing Your Worries Away | 1942 | Tommy Jones | Movie |
| Parachute Battalion | 1941 | Jeff Hollis | Movie |
| They Met in Argentina | 1941 | Duke Ferrel | Movie |
| Four Girls in White | 1939 | Express | Movie |
| The Wizard of Oz | 1939 | The Tin Man (singing voice, uncredited) | Movie |
| The Kid from Texas | 1939 | 'Snifty' | Movie |
| My Lucky Star | 1938 | Buddy | Movie |
| The Girl of the Golden West | 1938 | 'Alabama' | Movie |
| Yellow Jack | 1938 | 'Jellybeans' | Movie |
| Broadway Melody of 1938 | 1937 | Peter Trot | Movie |
| Banjo on My Knee | 1936 | Buddy | Movie |
| Born to Dance | 1936 | 'Mush' Tracy | Movie |
| Captain January | 1936 | Paul Roberts | Movie |
| Broadway Melody of 1936 | 1935 | Ted Burke | Movie |