Biografía no disponible
| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 1988 | El héroe y el terror | Civil Engineer | ★★★☆☆ |
| 1968 | Here's Lucy | Workman #2 | ★★★☆☆ |
| 1966 | Batman: La película | American Delegate (uncredited) | ★★★☆☆ |
| 1964 | La revancha de Clint Cooper | ★★★☆☆ | |
| 1960 | Noose for a Gunman | Willetts | ★★★☆☆ |
| 1958 | Sed de mal | Marcia Linnekar's Attorney (uncredited) | ★★★★☆ |
| 1958 | El retorno de Drácula | Mack Bryant - Dept. of Immigration (uncredited) | ★★★☆☆ |
| 1957 | Un sombrero lleno de lluvia | Celia's Supervisor (uncredited) | ★★★☆☆ |
| 1957 | The Tijuana Story | ★★☆☆☆ | |
| 1957 | Gun Duel In Durango | Larkin - Man Stealing Guns (uncredited) | ★★★☆☆ |
| 1957 | Perry Mason | Frank - Studio Guard | ★★★★☆ |
| 1957 | Tales of Wells Fargo | Keenan | ★★★☆☆ |
| 1957 | Perry Mason | Police Sergeant | ★★★★☆ |
| 1956 | Blackjack Ketchum Desperado | Dee Havalik | ★★★☆☆ |
| 1956 | Libertad o muerte | President Jackson's Aide (uncredited) | ★★★☆☆ |
| 1956 | La gran prueba | Supply Sergeant (uncredited) | ★★★☆☆ |
| 1956 | Hey, Jeannie! | Paul Revere | ★★★☆☆ |
| 1955 | Dial Red O | Devon | ★★☆☆☆ |
| 1955 | Devil Goddess | Nels Comstock | ★★★☆☆ |
| 1955 | Gunsmoke | John Hirschbeck | ★★★☆☆ |
| 1955 | The Life and Legend of Wyatt Earp | ★★★☆☆ | |
| 1955 | The Adventures of Champion | Rustler | ★★★☆☆ |
| 1955 | The Adventures of Champion | Logan | ★★★☆☆ |
| 1955 | Gunsmoke | Townsman | ★★★☆☆ |
| 1954 | Sitting Bull, casta de guerreros | O'Connor | ★★☆☆☆ |
| 1954 | La ley contra Billy el niño | Dave Rudabaugh | ★★☆☆☆ |
| 1954 | The Golden Idol | Sergeant Reed | ★★☆☆☆ |
| 1954 | Jesse James vs. the Daltons | Emmett Dalton | ★★★☆☆ |
| 1954 | Captain Kidd and the Slave Girl | Steve Castle (as Bill Tannen) | ★★★☆☆ |
| 1953 | Calle River, 99 | Director | ★★★☆☆ |
| 1953 | El Paso Stampede | Henchman Joe | ★★★☆☆ |
| 1953 | Jack McCall, Desperado | Spargo | ★★★☆☆ |
| 1953 | I, the Jury | ★★★☆☆ | |
| 1953 | El pirata de los siete mares | Ramon | ★★★☆☆ |
| 1953 | La ley del Oeste | Stranger (uncredited) | ★★☆☆☆ |
| 1953 | Eyes of the Jungle | Jeff Roper | ☆☆☆☆☆ |
| 1953 | Dangerous Crossing | Ship's Officer (uncredited) | ★★★☆☆ |
| 1952 | Jungle Jim in the Forbidden Land | 'Doc' Edwards | ★★★☆☆ |
| 1952 | Road Agent | Toll Gate Guard | ★★★☆☆ |
| 1952 | Talk About a Stranger | Driggs | ★★★☆☆ |
| 1952 | Cautivos del mal | Reporter (uncredited) | ★★★★☆ |
| 1952 | Flat Top | Commander (uncredited) | ★★☆☆☆ |
| 1952 | Dangerous Assignment | ★★☆☆☆ | |
| 1951 | Insurance Investigator | 1st Hood | ★★★☆☆ |
| 1951 | A Yank in Korea | Lt. Lewis | ☆☆☆☆☆ |
| 1951 | Roaring City | Ed Gannon | ★★★☆☆ |
| 1951 | Blue Blood | Sparks | ☆☆☆☆☆ |
| 1951 | I Was an American Spy | American Captain (uncredited) | ★★★☆☆ |
| 1951 | El mejor de los malvados | Bill - Adjutant (uncredited) | ★★★☆☆ |
| 1951 | The Adventures of Kit Carson | ★★★☆☆ | |
| 1950 | Pygmy Island | Kruger | ★★☆☆☆ |
| 1950 | Sunset in the West | John Kimball (as William J. Tannen) | ★★★★☆ |
| 1950 | Los jinetes de las praderas | Trump Dixon | ★★★☆☆ |
| 1950 | Peligro en las nubes | Lieutenant | ★★★☆☆ |
| 1950 | Chain Gang | Harry Cleaver | ★★★☆☆ |
| 1950 | Tres secretos | Bobby Lynch (uncredited) | ★★★☆☆ |
| 1950 | Drama en presidio | Prison Guard (uncredited) | ★★★☆☆ |
| 1950 | Atraco al furgón blindado | Officer Johnson (uncredited) | ★★★☆☆ |
| 1950 | La reina del oeste | Barker (uncredited) | ★★★☆☆ |
| 1950 | Pal, Canine Detective | ☆☆☆☆☆ | |
| 1949 | El político | Man in City Bar (uncredited) | ★★★☆☆ |
| 1949 | The Mysterious Desperado | Bart Barton | ★★☆☆☆ |
| 1949 | Alaska Patrol | Dajek | ☆☆☆☆☆ |
| 1949 | Abandoned | Taxi Driver (uncredited) | ★★★☆☆ |
| 1948 | An Innocent Affair | Gaylord | ★★☆☆☆ |
| 1948 | La gran amenaza | FBI Chemist | ★★★☆☆ |
| 1948 | Los tres mosqueteros | Traveler (uncredited) | ★★★☆☆ |
| 1947 | Cynthia | Dingle Clerk (Uncredited) | ★★★☆☆ |
| 1946 | Our Old Car | Officer Donahue (uncredited) | ★★☆☆☆ |
| 1945 | The Great Morgan | Officer Donohue (archive footage) (uncredited) | ★★★☆☆ |
| 1945 | A Gun in His Hand | Police Lab Technician Wilson (uncredited) | ★★★☆☆ |
| 1945 | Abbott y Costello en Hollywood | Casting Director / Dr. Caswell Snide (uncredited) | ★★★☆☆ |
| 1945 | Fin de semana | Photographer (uncredited) | ★★★☆☆ |
| 1945 | Main Street After Dark | Wallet-Preparer (uncredited) | ★★☆☆☆ |
| 1944 | El fantasma de Canterville | Jordan | ★★★☆☆ |
| 1944 | Main Street Today | Department of Transportation Representative (uncredited) | ★★★☆☆ |
| 1944 | Maisie Goes to Reno | Lead Man (Uncredited) | ★★★☆☆ |
| 1944 | Dark Shadows | McKay's Assistant (uncredited) | ★★★★★ |
| 1943 | Los vigilantes del cielo | Joseph | ★★★★☆ |
| 1943 | For God and Country | Captain | ☆☆☆☆☆ |
| 1943 | Presenting Lily Mars | Eugene Shepherd | ★★★☆☆ |
| 1942 | La mujer del año | Ellis | ★★★☆☆ |
| 1942 | Fingers at the Window | Devlan | ★★★☆☆ |
| 1942 | Nazi Agent | Ludwig | ★★★☆☆ |
| 1942 | The Lady or the Tiger? | Frank R. Stockton | ☆☆☆☆☆ |
| 1942 | The Affairs of Martha | Mechanic (uncredited) | ★★★☆☆ |
| 1942 | Stand by for Action | Flag Lt. Dudley | ★★★★☆ |
| 1942 | Joe Smith, American | Eddie | ★★★☆☆ |
| 1942 | Grand Central Murder | Second Railroad Yardman (uncredited) | ★★★☆☆ |
| 1942 | Pacific Rendezvous | Jasper Dean | ★★★☆☆ |
| 1942 | Ship Ahoy | Agent Flammer | ★★★☆☆ |
| 1942 | Por mi chica y por mí | France Soldier-Driver (uncredited) | ★★★☆☆ |
| 1942 | Maisie Gets Her Man | Army Stage Manager (Uncredited) | ★★★★☆ |
| 1942 | Tarzán en Nueva York | Mike, an Airport Clerk (uncredited) | ★★★☆☆ |
| 1942 | Cairo | Mechanic at the pyramid (uncredited) | ★★★☆☆ |
| 1941 | El extraño caso del Dr. Jekyll | Intern Fenwick | ★★★☆☆ |
| 1941 | Down in San Diego | Matt Herman | ★★★☆☆ |
| 1941 | Whistling in the Dark | Robert Graves | ★★★☆☆ |
| 1941 | I'll Wait for You | Driver | ★★★☆☆ |
| 1941 | Tienda de locos | Fred Sutton | ★★★☆☆ |
Películas destacadas de William Tannen
Estas son las películas más destacadas en las que ha trabajdo:
