Leif Erickson (born William Wycliffe Anderson) was an American stage, film, and television actor.
| Series | Wild Times | John Tyree | 1980-01-24 |
| Series | The Fantastic Journey | Unknown | 1977-02-03 |
| Movie | Twilight's Last Gleaming | Ralph Whittaker - CIA Director | 1977-02-09 |
| Movie | Legato | Tommy Van Dusen | 1977-02-25 |
| Series | Hunter | Unknown | 1977-02-18 |
| Movie | Force Five | Cal Newkirk | 1975-03-28 |
| Movie | Abduction | Prescott | 1975-05-05 |
| Series | Medical Story | Unknown | 1975-09-04 |
| Movie | Winterhawk | Guthrie | 1975-11-05 |
| Series | Harry O | Unknown | 1974-09-12 |
| Series | The Evil Touch | Unknown | 1973-06-19 |
| Movie | The Six Million Dollar Man: The Solid Gold Kidnapping | William Henry Cameron | 1973-11-17 |
| Series | The Sixth Sense | Unknown | 1972-01-15 |
| Series | The Rookies | Unknown | 1972-09-11 |
| Movie | The Daughters of Joshua Cabe | Amos Wetherall | 1972-09-13 |
| Series | The Streets of San Francisco | Unknown | 1972-09-23 |
| Movie | Man and Boy | Sheriff Mossman | 1971-06-23 |
| Series | Cannon | Unknown | 1971-09-14 |
| Movie | Terror in the Sky | Marty Treleavan | 1971-09-17 |
| Movie | The Deadly Dream | Dr. Harold Malcolm | 1971-09-25 |
| Series | Night Gallery | Unknown | 1970-12-16 |
| Series | Medical Center | Unknown | 1969-09-24 |
| Series | The Mod Squad | Unknown | 1968-09-24 |
| Series | Ironside | Unknown | 1967-03-28 |
| Series | Mannix | Unknown | 1967-09-16 |
| Series | The High Chaparral | Big John Cannon | 1967-09-10 |
| Series | Branded | Unknown | 1965-01-24 |
| Movie | I Saw What You Did | Dave Mannering | 1965-07-21 |
| Movie | Mirage | The Major | 1965-10-29 |
| Movie | Strait-Jacket | Bill Cutler | 1964-01-19 |
| Movie | The Carpetbaggers | Jonas Cord Senior | 1964-04-08 |
| Movie | Roustabout | Joe Lean | 1964-11-11 |
| Series | Daniel Boone | Unknown | 1964-09-24 |
| Series | Arrest and Trial | Unknown | 1963-09-15 |
| Movie | A Gathering of Eagles | Gen. Hewitt | 1963-06-21 |
| Series | Burke's Law | Unknown | 1963-09-20 |
| Series | Bob Hope Presents the Chrysler Theatre | Unknown | 1963-10-04 |
| Series | The Great Adventure | Unknown | 1963-09-27 |
| Series | Kraft Suspense Theatre | Unknown | 1963-10-10 |
| Movie | Shootout at Big Sag | Sam Barbee | 1962-05-31 |
| Series | The Virginian | Unknown | 1962-09-19 |
| Series | The New Breed | Unknown | 1961-10-03 |
| Series | The Rebel | Unknown | 1959-10-04 |
| Series | Rawhide | Unknown | 1959-01-09 |
| Series | The DuPont Show with June Allyson | Unknown | 1959-09-21 |
| Movie | Twilight for the Gods | Harry Hutton | 1958-08-04 |
| Series | The Rifleman | Unknown | 1958-09-30 |
| Movie | Once Upon a Horse... | Granville "Granny" Dix | 1958-09-01 |
| Movie | Istanbul | Charlie Boyle | 1957-01-23 |
| Movie | Kiss Them for Me | Eddie Turnbill | 1957-12-10 |
| Movie | The Vintage | Louis Morel | 1957-05-08 |
| Movie | Star in the Dust | George Ballard | 1956-06-13 |
| Movie | The Fastest Gun Alive | Lou Glover | 1956-07-12 |
| Movie | Tea and Sympathy | Bill Reynolds | 1956-09-27 |
| Series | Dick Powell's Zane Grey Theatre | Unknown | 1956-10-05 |
| Series | Gunsmoke | Unknown | 1955-09-10 |
| Series | The Millionaire | Unknown | 1955-01-19 |
| Series | Alfred Hitchcock Presents | Unknown | 1955-10-02 |
| Series | Matinee Theater | Unknown | 1955-10-31 |
| Movie | On the Waterfront | Glover | 1954-06-22 |
| Series | Inner Sanctum | Unknown | 1954-01-09 |
| Series | Climax! | Unknown | 1954-10-07 |
| Movie | Trouble Along the Way | Father Provincial aka Ed | 1953-04-04 |
| Movie | Born to the Saddle | Bob Marshall | 1953-03-15 |
| Series | General Electric Theater | Unknown | 1953-02-01 |
| Movie | A Perilous Journey | Richards | 1953-04-05 |
| Movie | Never Wave at a WAC | Sgt. Norbert 'Noisy' Jackson | 1953-01-28 |
| Movie | Invaders from Mars | Mr. George MacLean | 1953-04-22 |
| Movie | Paris Model | Edgar Blevins | 1953-11-10 |
| Movie | Captain Scarface | Sam | 1953-10-15 |
| Movie | Fort Algiers | Kalmani | 1953-08-30 |
| Movie | The Cimarron Kid | Marshal John Sutton | 1952-01-13 |
| Movie | With a Song in My Heart | General (uncredited) | 1952-04-03 |
| Movie | Sailor Beware | Commander Lane | 1952-02-08 |
| Movie | Carbine Williams | Feder | 1952-05-01 |
| Movie | Abbott and Costello Meet Captain Kidd | Morgan | 1952-12-27 |
| Movie | My Wife's Best Friend | Nicholas Reed | 1952-10-09 |
| Movie | Fourteen Hours | Bit Part (uncredited) | 1951-04-01 |
| Movie | Hill Number One: A Story of Faith and Inspiration | Pilate | 1951-03-25 |
| Movie | Show Boat | Pete | 1951-07-19 |
| Movie | The Tall Target | Stranger | 1951-08-17 |
| Series | Schlitz Playhouse of Stars | Unknown | 1951-10-05 |
| Movie | Reunion in Reno | B. Frederick Linaker | 1951-10-09 |
| Movie | Stella | Fred Anderson Jr. | 1950-07-20 |
| Movie | The Showdown | Big Mart | 1950-08-15 |
| Movie | Mother Didn't Tell Me | Dr. Bruce Gordon | 1950-03-03 |
| Movie | Three Secrets | Bill Chase | 1950-10-20 |
| Movie | Dallas | U.S. Marshal Martin Weatherby | 1950-12-30 |
| Movie | Johnny Stool Pigeon | Pringle | 1949-04-20 |
| Movie | The Lady Gambles | Tony | 1949-05-20 |
| Movie | Sorry, Wrong Number | Fred Lord | 1948-09-24 |
| Movie | The Snake Pit | Gordon | 1948-11-04 |
| Movie | Miss Tatlock's Millions | Dr. Mason | 1948-11-19 |
| Movie | Joan of Arc | Dunois, Bastard of Orleans | 1948-12-22 |
| Movie | Blonde Savage | Steve Blake | 1947-11-22 |
| Movie | The Gangster | Beaumont | 1947-11-25 |
| Movie | Are Husbands Necessary? | Bill Stone | 1942-06-15 |
| Movie | Eagle Squadron | Johnny M. Coe | 1942-06-16 |
| Movie | The Fleet's In | Jake | 1942-01-24 |
| Movie | Pardon My Sarong | Whaba | 1942-08-07 |
| Movie | Arabian Nights | Kamar (as Leif Erikson) | 1942-12-25 |
| Movie | Night Monster | Laurie | 1942-10-20 |
| Movie | Nothing But the Truth | Tommy Van Dusen | 1941-10-10 |
| Movie | H.M. Pulham, Esq. | Rodney 'Bo-Jo' Brown | 1941-12-04 |
| Movie | The Blonde from Singapore | Terry Prescott | 1941-10-15 |
| Movie | One Third of a Nation | Peter Cortlant | 1939-02-10 |
| Movie | Crisis | Narrator (voice) | 1939-03-13 |
| Movie | The Big Broadcast of 1938 | Bob Hayes | 1938-02-11 |
| Movie | Ride a Crooked Mile | Johnny Simpkins | 1938-12-09 |
| Movie | Waikiki Wedding | Dr. Victor Quimby | 1937-03-23 |
| Movie | Conquest | Paul Lachinski | 1937-10-22 |
| Movie | Thrill of a Lifetime | Howard Nelson | 1937-12-03 |
| Movie | Drift Fence | Curley Prentice | 1936-02-14 |
| Movie | Desert Gold | Glenn Kasedon | 1936-03-26 |
| Movie | College Holiday | Dick Winters | 1936-12-19 |
| Movie | Girl of the Ozarks | Tom Bolton | 1936-06-12 |
| Movie | Wanderer of the Wasteland | Lawrence | 1935-09-09 |
| Movie | Nevada | Bill Ide | 1935-11-29 |