| Jack Palance | ... | Johnny Slate | |
| Stuart Erwin | ... | Otto King | |
| Harry Guardino | ... | James Paleski | |
| Joan Freeman | ... | Nina Henderson | |
| Alfred Ryder | ... | Count von Scherling | |
| Ollie O'Toole | ... | Watchman | |
| Dale Van Sickel | ... | Ed Gallo (as Dale Van Sickle) |
| Jack Palance | ... | Johnny Slate | |
| Ruth Roman | ... | Inge Johansen | |
| Russ Tamblyn | ... | Tom Tuttle | |
| Robert Webber | ... | Rudy | |
| Tuesday Weld | ... | Louisa Johansen |
| Michael Consoldane | ... | Boy Who Joins Circus | |
| José Ferrer | ... | Harry Kyle | |
| Del Graham | ... | Acrobat (as Dell Graham) | |
| Buddy Lewis | ... | Guido | |
| Jack Palance | ... | Johnny Slate | |
| Joseph V. Perry | ... | Anton (as Joseph Perry) | |
| Aaron Saxon | ... | Pete Hanley | |
| Martha Scott | ... | Claire Kyle | |
| Joseph Walsh | ... | Ted Kyle (as Joey Walsh) | |
| Robert J. Wilke | ... | Lou Sirotta (as Robert Wilke) |
| Bradford Dillman | ... | Vito | |
| Theodore Marcuse | ... | Bill Morris | |
| Russi O'Meara | ... | Juliana | |
| Jack Palance | ... | Johnny Slate | |
| Gilbert Roland | ... | Pappa Cesare | |
| Buck Taylor | ... | Joe | |
| Brenda Vaccaro | ... | Felicia |
| Booth Colman | ... | Boykin | |
| Peggy McCay | ... | Anne | |
| Hugh O'Brian | ... | Garve | |
| Jack Palance | ... | Johnny Slate | |
| Maggie Pierce | ... | Betty | |
| Ted Stanhope | ... | Doc | |
| Harold J. Stone | ... | Greenwood |
| Eddie Albert | ... | Frank Land | |
| Joby Baker | ... | Rick Andover | |
| Rudy Dolan | ... | Policeman | |
| Sal Mineo | ... | Billy Archer | |
| Jack Palance | ... | Johnny Slate | |
| Diane Sayer | ... | Cynthia | |
| Helen Westcott | ... | Veda Devine (as Hellena Westcott) |
| James Coburn | ... | Kelly | |
| Robert Doyle | ... | Eddy | |
| Stuart Erwin | ... | Otto King | |
| Fabian | ... | Mac | |
| Douglas Henderson | ... | Lempeck (as Doug Henderson) | |
| Marian McCargo | ... | Mrs. Kelly (as Marion Moses) | |
| Zeme North | ... | Eloise | |
| Jack Palance | ... | Johnny Slate | |
| Joseph V. Perry | ... | Clown (as Joseph Perry) |
| Ruth Carlson | |||
| Michael Hinn | |||
| Dal McKennon | |||
| Jack Palance | ... | Johnny Slate | |
| Cliff Robertson | ... | Willie Simple | |
| Frank Sutton | ... | Uncle Marko | |
| Monica Tenner | ... | Cindy | |
| David Winters | ... | Tig |
| John Astin | ... | Bartley | |
| John Baer | ... | Crony | |
| Felicia Farr | ... | Isabel Duval | |
| Edward Faulkner | ... | Dowling | |
| Anthony Franciosa | ... | Warren Duval | |
| Jack Palance | ... | Johnny Slate |
| Jack Palance | ... | Johnny Slate | |
| Stuart Erwin | ... | Otto King | |
| Robert Ball | ... | Clerk | |
| Charles De Vries | ... | Lederman | |
| Ricardo Montalban | ... | Gus Trikonis | |
| Michael Parks | ... | Cristos | |
| Fay Spain | ... | Alicia |
| Sandra Bettin | ... | Doris (as Sandra Gale) | |
| Ila Britton | ... | Nurse | |
| Paul Comi | ... | Mike Wilkins | |
| Nina Foch | ... | Angelica Cellini | |
| Berkeley Harris | ... | Rod Nichols | |
| Paul Hartman | ... | Eric Porter | |
| Marlyn Mason | ... | Terry Carnahan | |
| Jack Palance | ... | Johnny Slate | |
| Rudy Solari | ... | Guy Duchamps |
| Luana Anders | ... | Margaret | |
| Howard Caine | ... | Bartender | |
| Dennis Hopper | ... | Rhymer | |
| Jack Palance | ... | Johnny Slate | |
| Dean Stockwell | ... | Harley Brydell | |
| Karl Swenson | ... | Louis |
| Lucille Ball | ... | Kate Reynolds | |
| Roger C. Carmel | ... | Kirov | |
| Dabbs Greer | |||
| Bill Mumy | ... | Jeff (as Billy Mumy) | |
| Jack Palance | ... | Johnny Slate | |
| Robert F. Simon | ... | Greenwalt | |
| Irene Tedrow | ... | Agatha Potter |
| Chris Alcaide | ... | Hodges | |
| Geraldine Brooks | ... | Gina | |
| Michael Constantine | ... | Verducci | |
| Steve Harris | ... | Joey Genarro | |
| Jack Palance | ... | Johnny Slate |
| John Dehner | ... | Aubrey | |
| Erin Leigh | ... | Sandra | |
| Dorothy Malone | ... | Jeannie Gilbert | |
| Neil Nephew | ... | Pancho | |
| Jack Palance | ... | Johnny Slate | |
| Alejandro Rey | ... | Chico | |
| Carol Sandifer | ... | Norma |
| Jack Palance | ... | Johnny Slate | |
| Stuart Erwin | ... | Otto King | |
| Steven Hill | ... | Frankie Santene | |
| Patricia Breslin | ... | Lisa, Frankie's wife | |
| Ann Adler | ... | Valkyrie III | |
| Frank DeKova | ... | Joseph (as Frank de Kova) | |
| Billy Gray | ... | Nick (as Bill Gray) |
| Ellen Burstyn | ... | Susan Mason (as Ellen MacRae) | |
| Tim Graham | ... | Finney | |
| Duane Grey | ... | Pitchman | |
| Miranda Jones | ... | Louise | |
| Jack Palance | ... | Johnny Slate | |
| William Sargent | ... | Jack Spangler | |
| Sarah Selby | ... | Josephia | |
| Cornel Wilde | ... | Gil McMasters |
| Alan Carney | ... | Sam | |
| Danielle De Metz | ... | Maggie Valois | |
| Hans Difflipp | ... | Aaron | |
| Tony Dow | ... | Billy Rusher | |
| Stuart Erwin | ... | Otto King | |
| Martha Hyer | ... | Lucy Carroll | |
| Ruby Keeler | ... | Peggy Rusher | |
| Ken Murray | ... | Sean Rusher | |
| Jack Palance | ... | Johnny Slate | |
| Charles Robinson | ... | Ollie Forest IV |
| Sally Carter-Ihnat | ... | Jeannie (as Sally Carter) | |
| Michael Consoldane | ... | Boy Joins Circus | |
| Del Graham | ... | Alex | |
| Louis Jourdan | ... | Kurt Von Hecht | |
| Buddy Lewis | ... | Usher | |
| Jack Palance | ... | Johnny Slate | |
| Charles H. Radilak | ... | Unger (as Charles Hradilac) | |
| Jeremy Slate | ... | Tommy Jackson | |
| Leslie Wales | ... | Kitty Brady | |
| Francine York | ... | Geologist |
| Phyllis Avery | ... | Anne | |
| Jennifer Billingsley | ... | Marie | |
| Arte Johnson | ... | Mario | |
| Russell Johnson | ... | Dr. Arnold Andrews | |
| Jack Lord | ... | Wally Walker | |
| Jack Palance | ... | Johnny Slate | |
| Ed Peck | ... | Sanders | |
| Bill Zuckert | ... | Anderson | |
| Cathie Merchant | ... | Circus Performer (uncredited) |
| Marta Kristen | ... | Billie Jo | |
| Jody McCrea | ... | Patrick O'Kelley | |
| Maggie McNamara | ... | Moira O'Kelley | |
| Edmond O'Brien | ... | Mike O'Kelley | |
| Jack Palance | ... | Johnny Slate | |
| Larry Storch | ... | Bob Eagle | |
| Skip Ward | ... | Sean O'Kelley (as James Ward) |
| Walter Brooke | ... | Ralph Mack | |
| Red Buttons | ... | Walter Wallace | |
| John Dennis | ... | Charlie | |
| Bruce Dern | ... | Vernon | |
| Bernie Hamilton | ... | J.J. | |
| Marianna Hill | ... | Edie | |
| Donn J. Moyer | ... | Fire Eater | |
| Jack Palance | ... | Johnny Slate |
| Barbara Bain | ... | Betty | |
| Suzi Carnell | ... | Rachel | |
| Yvonne De Carlo | ... | Magda Kolday | |
| Dudley Henriques | ... | Hugo | |
| Martin Landau | ... | Mario de Mona | |
| Jack Palance | ... | Johnny Slate | |
| Paul Picerni | ... | Marco the Magnificent | |
| Buck Taylor | ... | Tony |
| Alan Baxter | ... | Mr. Richards | |
| Henry Beckman | ... | Spike Samson | |
| Doris Dowling | ... | Minnie | |
| Julie Newmar | ... | Willa Harper | |
| Arthur O'Connell | ... | Pop Slate | |
| Jack Palance | ... | Johnny Slate | |
| Al Ruscio | ... | Julio | |
| Russell Thorson | ... | Hickey |
| Jack Palance | ... | Johnny Slate | |
| William Demarest | ... | Paul Keller | |
| Annette Funicello | ... | Melanie Keller | |
| Dwayne Hickman | ... | Dr. Gregg Blakeley | |
| Cecil Kellaway | ... | Doc Browne |
| Don Ameche | ... | Collie McCullough | |
| Betty Hutton | ... | Julia Dana | |
| Monique LeMaire | ... | Prudence | |
| Elaine Martone | ... | Freda | |
| Jack Palance | ... | Johnny Slate | |
| Michael Panaieff | ... | Art Stevens | |
| Gene Roth | ... | Russell Phillips | |
| K.L. Smith | ... | Sanford |
| John Brinkley | ... | Ron Silver | |
| Brandon De Wilde | ... | Vic Hawkins | |
| Jack Palance | ... | Johnny Slate | |
| Beverly Reed | ... | Irene (as Beverlee Reed) | |
| Susan Silo | ... | Susan Silver | |
| James Whitmore | ... | Marsh | |
| William Woodson | ... | Ringmaster |
| Jack Palance | ... | Johnny Slate | |
| Stuart Erwin | ... | Otto King | |
| J. Pat O'Malley | ... | Pete | |
| Spring Byington | ... | Louise | |
| Sheree North | ... | Gloria | |
| Rory Calhoun | ... | Roger | |
| Andrew Duggan | ... | McHenry | |
| Sally Kellerman | ... | Judith | |
| Agnes Moorehead | ... | Millie | |
| Deborah Walley | ... | Anne |
| Edgar Bergen | ... | McTavish | |
| Antony Carbone | ... | Abbott (as Anthony Carbone) | |
| Bernard Kates | ... | Fenton | |
| Frank Maxwell | ... | Markham | |
| Joanna Moore | ... | Denny Greenleaf | |
| Barry Nelson | ... | Clay Keifer | |
| Jack Palance | ... | Johnny Slate |
| Jack Palance | ... | Johnny Slate | |
| Stuart Erwin | ... | Otto King | |
| Joe E. Brown | ... | Diamond 'Dimey' Vine | |
| Buster Keaton | ... | Pippo | |
| Joan Blondell | ... | T.T. Hill | |
| Ted Bessell | ... | Loring Wagner | |
| Betsy Jones-Moreland | ... | Louella Grant | |
| Lynn Loring | ... | Ivy Hatch | |
| Lawrence Montaigne | ... | Felix | |
| Barbara Pepper | ... | Fat Lady |
You may add a new episode for this TV series by clicking the 'add episode' button