| Adam-12 | 1968 | Dr. Sundstrom | TV Show |
| Here's Lucy | 1968 | Mr. Frost | TV Show |
| Mayberry R.F.D. | 1968 | Austin Harlowe | TV Show |
| The Outsider | 1968 | Brad Elston | TV Show |
| Did You Hear the One About the Traveling Saleslady? | 1968 | Ben Milford | Movie |
| Now You See It, Now You Don't | 1968 | George | TV Movie |
| A Guide for the Married Man | 1967 | Man in Bed (as George Neise) | Movie |
| Ironside | 1967 | Alvin Kresser | TV Show |
| Judd for the Defense | 1967 | Matthew Tribin | TV Show |
| A Fine Madness | 1966 | Television Interviewer (uncredited) | Movie |
| Any Wednesday | 1966 | Art Gallery Visitor (uncredited) | Movie |
| Penelope | 1966 | Mr. Halliday (uncredited) | Movie |
| Batman | 1966 | Mr. Sam Shubert / Douglas Cramer | TV Show |
| Pistols 'n' Petticoats | 1966 | Lafayette Ambrose | TV Show |
| That Girl | 1966 | Desk Clerk / Norman Kramer | TV Show |
| The Pickle Brothers | 1966 | Tweed (as George Neise) | TV Movie |
| Brainstorm | 1965 | Party Guest (uncredited) | Movie |
| Do Not Disturb | 1965 | Swedish Delegate (uncredited) | Movie |
| I'll Take Sweden | 1965 | Man in Bed with Blonde (uncredited) | Movie |
| Inside Daisy Clover | 1965 | Director (uncredited) | Movie |
| Two on a Guillotine | 1965 | Reporter at Funeral (uncredited) | Movie |
| Get Smart | 1965 | Dr. Mangle | TV Show |
| Green Acres | 1965 | Buddy Atkinson / Clerk | TV Show |
| Hogan's Heroes | 1965 | Captain Mueller | TV Show |
| My Mother the Car | 1965 | Salesman | TV Show |
| The F.B.I. | 1965 | George Cavell | TV Show |
| Looking for Love | 1964 | Mr. Harvey Miller (uncredited) | Movie |
| Gilligan's Island | 1964 | NASA Official / Interviewer | TV Show |
| Gomer Pyle: USMC | 1964 | Marine Officer | TV Show |
| The Addams Family | 1964 | Mr. Hollister | TV Show |
| Cattle King | 1963 | Clancy (uncredited) | Movie |
| Johnny Cool | 1963 | Adrian Guinness | Movie |
| Bob Hope Presents the Chrysler Theatre | 1963 | Joe Bakerman / Alex Morrill / John Mathews / ... | TV Show |
| Kraft Suspense Theatre | 1963 | Ted Bausfield | TV Show |
| Temple Houston | 1963 | Amos Tromp | TV Show |
| The Bill Dana Show | 1963 | Norman | TV Show |
| Vacation Playhouse | 1963 | Seymour | TV Show |
| The Big Brain | 1963 | Seymour (as George Niese) | TV Movie |
| Rome Adventure | 1962 | Benjamin Bentley (uncredited) | Movie |
| The Three Stooges in Orbit | 1962 | Ogg / Airline Pilot | Movie |
| The Three Stooges Meet Hercules | 1962 | Ralph Dimsal / King Odius | Movie |
| The Beverly Hillbillies | 1962 | Mr. Foley | TV Show |
| The Lucy Show | 1962 | Mr. Carter | TV Show |
| McKeever & the Colonel | 1962 | Colonel Thornton | TV Show |
| 87th Precinct | 1961 | Piat | TV Show |
| Ben Casey | 1961 | George Baxter | TV Show |
| Bus Stop | 1961 | Potter | TV Show |
| The Dick Van Dyke Show | 1961 | Leo Fassbinder | TV Show |
| Twenty Plus Two | 1961 | Walter Collinson (as George Neise) | Movie |
| Target: The Corruptors | 1961 | Vito | TV Show |
| Miami Undercover | 1961 | Major Hillary / Vernon Hunter / Caesar Gustoffson | TV Show |
| Bringing Up Buddy | 1960 | | TV Show |
| Checkmate | 1960 | George the Drunk | TV Show |
| My Three Sons | 1960 | Roy Wells / Salesman | TV Show |
| Pete and Gladys | 1960 | George | TV Show |
| Stagecoach West | 1960 | Lionel Chambers | TV Show |
| Surfside 6 | 1960 | Mitch Mitchell | TV Show |
| The Andy Griffith Show | 1960 | Roger Courtney | TV Show |
| Thriller | 1960 | Replaced | TV Show |
| Johnny Midnight | 1960 | Paul | TV Show |
| Laramie | 1959 | Earl Durban | TV Show |
| The Detectives | 1959 | Gender | TV Show |
| The Untouchables | 1959 | Archie Devlin / Archie Devlon / Ira Peterson / ... | TV Show |
| The Dennis O'Keefe Show | 1959 | Rex Andrews | TV Show |
| The Man from Blackhawk | 1959 | John Fuller | TV Show |
| Wichita Town | 1959 | Dr. Nat Wyndham | TV Show |
| Adventure Showcase | 1959 | | TV Show |
| Fort Massacre | 1958 | Pendleton | Movie |
| No Time for Sergeants | 1958 | Baker (uncredited) | Movie |
| 77 Sunset Strip | 1958 | Charlie / Walter David / Silky Callahan | TV Show |
| Bat Masterson | 1958 | Hillary Calhoun | TV Show |
| Bronco | 1958 | Maj. Elijah Moore | TV Show |
| Mister Ed | 1958 | Happy Hannegan / Jay Walsh / Dr. Pearson | TV Show |
| Northwest Passage | 1958 | Vance Stark | TV Show |
| The Ann Sothern Show | 1958 | Jack | TV Show |
| The Rifleman | 1958 | Roger Quenton | TV Show |
| U.S. Marshal | 1958 | Walter Sims | TV Show |
| Yancy Derringer | 1958 | Charles Hunter | TV Show |
| Outcasts of the City | 1958 | Hans Welton | Movie |
| We Who Serve | 1958 | Jeff Peters | Short Film |
| Jeanne Eagels | 1957 | Jerry the Traveling Salesman (uncredited) | Movie |
| Pharaoh's Curse | 1957 | Robert Quentin | Movie |
| The Tall Stranger | 1957 | Mort Harper (as George Neise) | Movie |
| Bachelor Father | 1957 | Arnold Lloyd | TV Show |
| Have Gun - Will Travel | 1957 | Beckley | TV Show |
| How to Marry a Millionaire | 1957 | Douglas Brock | TV Show |
| M Squad | 1957 | Dr. Stephen Renzik | TV Show |
| Maverick | 1957 | Jonesy | TV Show |
| Perry Mason | 1957 | Stacey Garnett / Morley Theilman / George Huxley / ... | TV Show |
| Richard Diamond, Private Detective | 1957 | Adams | TV Show |
| Trackdown | 1957 | Kels Gregory / Nate Phillips | TV Show |
| Wagon Train | 1957 | Judge Eli Brown | TV Show |
| Zorro | 1957 | Capitan Felipe Arellano | TV Show |
| Tomahawk Trail | 1957 | Lt. Jonathan Davenport (as George Neise) | Movie |
| Alcoa Theatre | 1957 | Dave / Robert Stuart | TV Show |
| Code 3 | 1957 | Dr. Tom Fremont | TV Show |
| Date with the Angels | 1957 | Carl | TV Show |
| Official Detective | 1957 | Detective Nash | TV Show |
| The Web | 1957 | Benjamin Corby | TV Show |
| State Trooper | 1956 | Ben Slausen / Warren Poole | TV Show |
| The Sharkfighters | 1956 | Cmdr. George Zimmer (as George Neise) | Movie |
| Frontier Doctor | 1956 | Walt Bodeen | TV Show |
| Chevron Hall of Stars | 1956 | Lewis | TV Show |
| Cheyenne | 1955 | McCool | TV Show |
| Ford Star Jubilee | 1955 | Budge | TV Show |
| Jane Wyman Presents The Fireside Theatre | 1955 | Frank | TV Show |
| The Honeymooners | 1955 | Mr. Faversham | TV Show |
| The Millionaire | 1955 | Grady | TV Show |
| Playwrights '56 | 1955 | | TV Show |
| Stage 7 | 1955 | Julian | TV Show |
| The Star and the Story | 1955 | Philip Delsing | TV Show |
| Father Knows Best | 1954 | John Rosser | TV Show |
| It's a Great Life | 1954 | Lyle Foster / Parkington | TV Show |
| Shower of Stars | 1954 | | TV Show |
| Studio 57 | 1954 | | TV Show |
| The Public Defender | 1954 | Carl Smith / Jim Parks / Harry / ... | TV Show |
| The Magical World of Disney | 1954 | Councilman Thompson / Lt. Peters | TV Show |
| Passport to Danger | 1954 | Adam Wells | TV Show |
| G.E. True Theater | 1953 | Stephen Jackson | TV Show |
| Private Secretary | 1953 | Dr. Palmer | TV Show |
| Make Room for Daddy | 1953 | George the Waiter / Irving Burgson / Emcee | TV Show |
| The Loretta Young Show | 1953 | Albert Lauderdale / Chuck Larson | TV Show |
| Death Valley Days | 1952 | Henry LeBaron / Ralston / Howard Pepper / ... | TV Show |
| Four Star Playhouse | 1952 | Art / Sy | TV Show |
| I Married Joan | 1952 | Radio Announcer / Assistant Director | TV Show |
| I'll See You in My Dreams | 1951 | Isham Jones (uncredited) | Movie |
| Schlitz Playhouse | 1951 | Percy Ralston / Martin Radley | TV Show |
| The Red Skelton Hour | 1951 | Mr. Cavendish / Guest / Pub Patron-Silent Spot / ... | TV Show |
| My Dream Is Yours | 1949 | Party Guest (uncredited) | Movie |
| Fireside Theatre | 1949 | | TV Show |
| The Lone Ranger | 1949 | Fred Fulton | TV Show |
| One Sunday Afternoon | 1948 | Chauncey (uncredited) | Movie |
| Romance on the High Seas | 1948 | Michael's Assistant (uncredited) | Movie |
| Experiment Perilous | 1944 | Alec (Gregory) | Movie |
| Once Upon a Time | 1944 | Aviator Lieutenant (uncredited) | Movie |
| Man from Frisco | 1944 | Narrator (uncredited) | Movie |
| Ladies of Washington | 1944 | Radio Commentator (uncredited) | Movie |
| Action in the North Atlantic | 1943 | German Lieutenant (uncredited) | Movie |
| Air Force | 1943 | Hickam Field Radio Operator (uncredited) | Movie |
| Hangmen Also Die! | 1943 | Mueller (uncredited) | Movie |
| Sahara | 1943 | British Sergeant (uncredited) | Movie |
| The Fighting Guerrillas | 1943 | German Scout (uncredited) | Movie |
| They Got Me Covered | 1943 | Matthews (uncredited) | Movie |
| Bomber's Moon | 1943 | The Gestapo Lieutenant | Movie |
| War Dogs | 1942 | Hans (as George Neise) | Movie |
| Flight Lieutenant | 1942 | Radio Operator (uncredited) | Movie |
| They Raid by Night | 1942 | Lt. Erik Falken | Movie |
| USS VD: Ship of Shame | 1942 | Sailor (uncredited) | Movie |
| Valley of Hunted Men | 1942 | Paul Schiller (as George Neise) | Movie |
