| Joseph Cotten | Jedediah Leland |
| Agnes Moorehead | Mary Kane |
| Ray Collins | James W. Gettys |
| Everett Sloane | Mr. Bernstein |
| Paul Stewart | Raymond |
| Fortunio Bonanova | Signor Matiste |
| Philip Van Zandt | Mr. Rawlston |
| Harry Shannon | Kane's Father |
| Buddy Swan | Kane, age eight |
| Don Ackerman | Man at party in Everglades |
| Demetrius Alexis | Newsreel extra |
| William Alston | Man at Xanadu Great Hall |
| Sam Ash | Man at boat dock |
| Walter Bacon | City room employee |
| Harry A. Bailey | Man singing at Inquirer party |
| Joan Blair | Georgia |
| Robert Brent | Man singing at Inquirer party |
| Dorothy Cleveland | Person in front of 'Chronicle' building |
| Eddie Coke | Reporter |
| Nat 'King' Cole | Pianist in 'El Rancho' |
| Gino Corrado | Gino |
| Charles Cross | Man at opera |
| Louise Currie | Reporter at Xanadu |
| Ernie Daniels | Hireling, Chicago Inquirer |
| Tim Davis | Copy boy |
| Marie Day | Insert bit |
| Carl Deloro | Man singing at Inquirer party |
| Petra R. de Silva | Newswoman |
| John Dilson | Ward Heeler |
| Suzanne Dulier | French maid |
| Pauline Easterday | Dancer |
| Jack Egan | Man singing at Inquirer party |
| Dick Elmore | Newsreel extra |
| Carl Faulkner | Hermann Goring |
| Jack Floyd | Hireling, Chicago Inquirer |
| Monty Ford | Man singing at Inquirer party |
| Olin Francis | Expressman |
| Al Frazier | Gorilla man |
| Captain Garcia | General |
| Bud Geary | Newspaperman at Trenton Town Hall |
| Renee Godfrey | Nurse |
| Jimmy Grant | Man at party in Everglades |
| Ernest Grooney | Man on hospital roof |
| Bobby Haines | Man singing at Inquirer party |
| Harry Harris | Man singing at Inquirer party |
| Lew Harvey | Newspaper man |
| Cliff Herd | Newspaperman at Trenton Town Hall |
| Harlan Hoagland | Man singing at Inquirer party |
| Mitchell Ingraham | Politician |
| Walter James | Ward Heeler |
| Clayton Jones | Man singing at Inquirer party |
| Harry Jones | Newspaperman at Trenton Town Hall |
| Arthur Kay | Orchestra Leader |
| E. Kerry | Person in front of 'Chronicle' building |
| Alan Ladd | Reporter smoking pipe at end |
| Carmen Laroux | Maid in corridor in Xanadu |
| Walter Lawrence | Newsreel extra |
| Bert LeBaron | Newspaperman at Trenton Town Hall |
| J.D. Lockhart | Man singing at Inquirer party |
| Ellen Lowe | Miss Townsend |
| Buck Mack | Man |
| James T. Mack | Prompter |
| Herman J. Mankiewicz | Newspaperman |
| Joe Manz | Jennings |
| Mickey Martin | Newsboy |
| Major McBride | Shadowgraph man |
| Charles Meakin | Civic leader |
| Buddy Messinger | Man at boat dock |
| Irving Mitchell | Dr. Corey |
| Philip Morris | Politician |
| Louis Natheaux | Reporter |
| Lillian Nicholson | Woman at opera |
| George Noisom | Copy boy |
| John Northpole | Newsreel extra |
| Arthur O'Connell | Reporter |
| Paddy O'Flynn | Man singing at Inquirer party |
| Edward Peil Jr | .Civic leader |
| Thomas Pogue | Man |
| Jack Raymond | Stagehand |
| Guy Repp | Reporter |
| Sam Rice | Man singing at Inquirer party |
| Suzanne Ridgeway | Dancer |
| Myrtle Rishell | Big governess |
| Don Roberts | Man singing at Inquirer party |
| Victor Romito | Newsreel extra |
| Shimen Ruskin | Hireling |
| Jack Ryan | Man at Madison Square Garden |
| Jack Santoro | Man at Xanadu Great Hall |
| Ruth Seeley | Dancer |
| Brent Shugar | Newsreel extra |
| Roy Smith | Man singing at Inquirer party |
| Bert Stevens | Man at Madison Square Garden |
| Jack Taylor | Newsreel extra |
| Bob Terry | Extra in Newsreel |
| Robert B. Tobin | Man singing at Inquirer party |
| Kathryn Trosper | Reporter at Xanadu |
| Glen Turnbull | Flotsam |
| Harry J. Vejar | Portugese laborer |
| Ken Weaver | Newspaperman at Trenton Town Hall |
| Larry Wheat | Man singing at Inquirer party |
| Jan Wiley | Reporter at Xanadu |
| Larry Williams | Man singing at Inquirer party |
| Richard Wilson | Reporter |
| Vera Winters | Woman in projection room |
| Louis Young | Newsreel extra |
| Dorothy Comingore | Susan Alexander Kane |
| Ruth Warrick | Emily Monroe Norton Kane |
| Erskine Sanford | Herbert Carter |
| William Alland | Jerry Thompson |
| George Coulouris | Walter Parks Thatcher |
| Gus Schilling | The Headwaiter |
| Georgia Backus | Bertha Anderson |
| Sonny Bupp | Charles Foster Kane III |
| Orson Welles | Charles Foster Kane |
| Loretta Agar | Dancing Girl |
| Peter Allen | Man in senate investigating committee |
| Baudelio Alva | Newsreel extra |
| Michael Audley | Man in projection room |
| Richard Baer | Hillman |
| Charles Bennett | Entertainer |
| Danny Borzage | Man singing at Inquirer party |
| Porter Chase | Man singing at Inquirer party |
| Edmund Cobb | Inquirer Reporter |
| Tom Coleman | Man singing at Inquirer party |
| Gene Coogan | Newsreel extra |
| Herbert Corthell | City Editor |
| Thomas A. Curran | Teddy Roosevelt |
| Jack Curtis | Boss printer |
| Margaret Davis | Dancer |
| Donna Dax | House maid |
| Gayle DeCamp | Man singing at Inquirer party |
| George DeNormand | Newspaperman at Trenton Town Hall |
| Eddie Dew | Man in projection rooma |
| Robert Dudley | Photographer |
| Art Dupuis | Newsreel extra |
| Al Eben | Solly |
| Carl Ekberg | Adolf Hitler |
| Edith Evanson | Leland's Nurse |
| Juanita Fields | Dancer |
| Ray Flynn | City room employee |
| Jean Forward | Opera Singer |
| Louise Franklin | Maid |
| Gloria Gale | Dancer |
| Jack Gargan | Man at Xanadu Great Hall |
| Rudolph Germaine | Newsreel extra |
| Peter Gowland | Guest |
| Jesse Graves | Joseph |
| Jack Gwynne | Man on hospital roof |
| Frank Haney | City room employee |
| Sam Harris | Newsreel extra |
| Edward L. Hemmer | Bit part |
| Bryan 'Slim' Hightower | Fish driver |
| John Huettner | Man at Xanadu Great Hall |
| Jack Jahries | Extra in Newsreel |
| George W. Jimenez | Waiter at Inquirer party |
| Edna Mae Jones | Dancer |
| Bill Kane | Man on hospital roof |
| Ivy Keene | Driver of car/woman in loggia scene |
| Milton Kibbee | Reporter at Wedding |
| Mike Lally | Newsreel extra |
| Perc Launders | Man in projection room |
| Bob Lawson | City room employee |
| Adam Linke | Druggist |
| Mary Lorraine | Dancer |
| Ludwig Lowry | Man singing at Inquirer party |
| Evelyn Mackert | Woman at boat dock |
| Teddy Mangean | Man on roof |
| Jack Manolas | Man singing at Inquirer party |
| Loretta Marsh | Dancer |
| Clyde McAtee | Newspaperman at Trenton Town Hall |
| John McCormack | Man singing at Inquirer party |
| Hercules Mendez | Man singing at Inquirer party |
| E.G. Miller | Neville Chamberlain/Newspaperman at Trenton Town Hall |
| Bert Moorhouse | Man at Xanadu Great Hall |
| Jack Morton | Butler |
| Frances E. Neal | Ethel |
| Leda Nicova | Dancer |
| Joseph North | Male secretary |
| William H. O'Brien | Male secretary |
| Frank O'Connor | Man at Madison Square Garden |
| Lillian O'Malley | Person in front of 'Chronicle' building |
| Gerald Pierce | Copy boy delivering message in Chicago hotel room |
| J.R. Ralston | Man singing at Inquirer party |
| Terrance Ray | Man at boat dock/man at Madison Square Garden |
| Jolane Reynolds | Dancer |
| Verne Richards | City room employee |
| Cyril Ring | Newspaperman at Trenton Town Hall |
| Jack Robbins | Newsreel extra |
| George Rogers | Newspaperman at Trenton Town Hall |
| Benny Rubin | Smather |
| Edward Ryan | Man in Inquirer city room |
| Walter Sande | Reporter at Xanadu |
| Francis Sayles | Politician |
| George Sherwood | Hireling |
| Bruce Sidney | Newsman |
| Ralph Stein | Hireling, Chicago Inquirer |
| Landers Stevens | Investigator |
| Norman Taylor | Man in senate investigating committee |
| Karl Thomas | Jetsam |
| Gregg Toland | Interviewer in 1935 Newsreel |
| Fred Trowbridge | Man singing at Inquirer party |
| Gohr Van Vleck | Stagehand |
| Tim Wallace | Newsreel extra |
| Charles West | Stage Manager |
| Patrick Whitney | Reporter |
| Bill Wilkens | Man on roof |
| Tudor Williams | Chorus Master |
| Roland Winters | Newspaperman at Trenton Town Hall |
| Arthur Yeoman | Speaker |