- Jeff Chandler
- Marcian
- Jack Palance
- Attila
- Ludmilla Tchérina
- Princess Pulcheria
- Rita Gam
- Kubra
- Jeff Morrow
- General Paulinus
- George Dolenz
- Emperor Theodosius
- Eduard Franz
- Astrologer
- Allison Hayes
- Ildico
- Alexander Scourby
- Chrysaphius
- Howard Petrie
- Gundahar
- Michael Ansara
- Edecon
- Leo Gordon
- Bleda
- Moroni Olsen
- Pope Leo I
- Fred Nurney
- Chamberlain
- Sara Shane
- Myra
- Pat Hogan
- Sangiban
- Robert Bice
- Chilothe
- Charles Horvath
- Olt
- Glenn Thompson
- Seyte
- Chuck Roberson
- Mirrai
- Walter Coy
- Emperor Valentinian
- Rusty Wescoatt
- Tula
- Norbert Schiller
- Seer
- Kenneth Alton
- Hun Warrior
- Robo Becchi
- Chilothus
- George Bozanic
- Bit Role
- Martin Cichy
- Hun
- Don Clark
- Bit Role
- Sidney Clute
- Monk
- Edmund Cobb
- Centurion
- Lindon Crow
- Bit Role
- John Damler
- Lieutenant
- Andrew Danville
- Roman Guard
- Peter Davis
- Bit Role
- Edward Earle
- Senator
- Gilbert Fallman
- Counsellor
- John Frederick
- Scout
- Frank Gifford
- Bit Role
- Bernie Gozier
- Hun Hunter
- Michael Granger
- Hun Scout
- Duane Grey
- Hun
- Mark Hanna
- Bit Role
- Len Hendry
- Soldier
- Robert Hunter
- Hun Hunter
- Sim Iness
- Herculanas
- Anthony Jochim
- Counsellor
- Hubie Kerns
- Bit Role
- Adam Lazarre
- Scout
- George Lynn
- Servant
- Paul Martin
- Officer
- Leon McLaughlin
- Bit Role
- Ralph Moratz
- Bloody Man Tied to Tree
- Boyd 'Red' Morgan
- Bit Role
- Lee Morgan
- Hun
- Ralph Peda
- Officer
- Rex Reason
- Opening Off-Screen Narrator
- John Roy
- Guard
- Ray Singer
- Officer
- Julian Upton
- Officer
- Rick Vallin
- Cavalry Officer
- Michael Vallon
- Merchant
- Charles Wagenheim
- Palace Messenger
- Joseph Waring
- Officer
- Robert Wegner
- Prison Guard
- Harry Wilson
- Hun
- Howard Wright
- Monk
