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| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 2019 | The Twilight Zone: A 60th Anniversary Celebration | Les Goodman (archive footage) | ★★★★★ |
| 1978 | The Kid from Not-So-Big | Nickerson | ☆☆☆☆☆ |
| 1978 | F.I.S.T. - Símbolo de fuerza | Milano's Attorney | ★★★☆☆ |
| 1977 | El increíble Howard Hughes | Sen. Brewster | ★★★☆☆ |
| 1974 | The Teacher | Sheriff Murphy | ★★☆☆☆ |
| 1974 | Amy Prentiss | Lt. Tom Hubbard | ☆☆☆☆☆ |
| 1974 | Los casos de Rockford | Raoch | ★★★★☆ |
| 1972 | Una historia alucinante | Janos Skorzeny | ★★★☆☆ |
| 1972 | HorroRitual | ☆☆☆☆☆ | |
| 1970 | Along Came a Spider | Judge Romagna | ★★☆☆☆ |
| 1969 | Night Gallery | Mr. Carson | ★★★★☆ |
| 1969 | La incursión de mil aviones | Gen. Conway | ★★★☆☆ |
| 1969 | The Young Lawyers | District Attorney | ☆☆☆☆☆ |
| 1968 | The Name of the Game | Sheriff Lucas | ★★★☆☆ |
| 1968 | Hawaii 5-0 | Lester Workman | ★★★★☆ |
| 1967 | El regreso de Ben Wyatt | Fred Lomax | ★★★☆☆ |
| 1967 | Los invasores | Dorcas | ★★★☆☆ |
| 1966 | Star Trek | Surak | ★★★★☆ |
| 1966 | Misión: imposible | Dr. Carlos Enero | ★★★★☆ |
| 1966 | Misión: imposible | Premier Leon Vados | ★★★★☆ |
| 1964 | Embrujada | Boris | ★★★★☆ |
| 1963 | El capitán Newman | Maj. Dawes (uncredited) | ★★★☆☆ |
| 1963 | El fugitivo | Cleve Logan | ★★★★☆ |
| 1963 | Más allá del límite | Dr. Jonas Temple | ★★★★☆ |
| 1962 | Dulce pájaro de juventud | Ben Jackson | ★★★☆☆ |
| 1962 | La hora de Alfred Hitchcock | Gar Newton | ★★★★☆ |
| 1962 | La hora de Alfred Hitchcock | Borchter | ★★★★☆ |
| 1961 | Battle at Bloody Beach | Jeff Pelham | ★★☆☆☆ |
| 1959 | Vice Raid | Phil Evans | ★★★☆☆ |
| 1959 | La cima de los héroes | Lt. Col. Davis | ★★★☆☆ |
| 1959 | La dimensión desconocida | Les Goodman | ★★★★☆ |
| 1959 | Black Saddle | Brand | ★★★☆☆ |
| 1959 | Un paso al más allá | Mr. Graham | ★★★☆☆ |
| 1959 | Black Saddle | Coley Dakins | ★★★☆☆ |
| 1958 | As Young As We Are | Mr. Carl Peterson | ★★★☆☆ |
| 1958 | The True Story of Lynn Stuart | Jim Hagan | ★★★☆☆ |
| 1958 | The Great Gatsby | George Wilson | ☆☆☆☆☆ |
| 1957 | Un hombre duro | George Dennison | ★★☆☆☆ |
| 1957 | La Verdadera Historia De Jesse James | Attorney Walker | ★★★☆☆ |
| 1957 | Perry Mason | Dr. Stuart Logan | ★★★★☆ |
| 1957 | Perry Mason | Robert Benson | ★★★★☆ |
| 1957 | Perry Mason | George Albert | ★★★★☆ |
| 1956 | Noche de pesadilla | Captain Warner | ★★★☆☆ |
| 1956 | Traidor a su patria | Maj. Byron Phillips | ★★★☆☆ |
| 1956 | Everything But the Truth | Arthur Taylor | ★★★★☆ |
| 1956 | Un revolver solitario | Dan Ritchy | ★★★☆☆ |
| 1955 | Gunsmoke | Mr. Bowen | ★★★☆☆ |
| 1955 | Gunsmoke | Jesse Daggett | ★★★☆☆ |
| 1955 | Gunsmoke | Ed Eby | ★★★☆☆ |
| 1955 | Gunsmoke | Harp | ★★★☆☆ |
| 1955 | Gunsmoke | Yewker | ★★★☆☆ |
| 1954 | A Time Out of War | Craig | ★★★☆☆ |
Películas destacadas de Barry Atwater
Estas son las películas más destacadas en las que ha trabajdo:
