Sam J. Jones ... Flash Gordon
Melody Anderson ... Dale Arden
Max von Sydow ... The Emperor Ming (as Max Von Sydow)
Topol ... Dr. Hans Zarkov
Ornella Muti ... Princess Aura
Timothy Dalton ... Prince Barin
Brian Blessed ... Prince Vultan
Peter Wyngarde ... Klytus
Mariangela Melato ... Kala
John Osborne ... Arborian Priest
Richard O'Brien ... Fico
John Hallam ... Luro
Philip Stone ... Zogi, the High Priest
Suzanne Danielle ... Serving Girl
William Hootkins ... Munson
Bobbie Brown ... Hedonia
Ted Carroll ... Biro
Adrienne Kronenberg ... Vultan's Daughter
Stanley Lebor ... Mongon Doctor
John Morton ... Airline Pilot
Burnell Tucker ... Airline Co-Pilot
Robbie Coltrane ... Man at Airfield
Peter Duncan ... Young Treeman
Ken Sicklen ... A Treeman
Tessa Hewitt ... Hawk Woman (as Tessa)
Venetia Spicer ... Hawk Woman
Francis Mughan ... Wounded Hawkman
Oliver MacGreevy ... Klytus Observer No. 1
John Hollis ... Klytus Observer No. 2
Paul Bentall ... Klytus' Pilot
Leon Greene ... Colonel of Battle Control Room
Graeme Crowther ... Battle Room Controller
Tony Scannell ... Ming's Officer
David Neal ... Captain of Ming's Air Force
Bogdan Kominowski ... Lieutenant of Ming's Air Force
George Harris ... Prince of Ardentia
Colin Taylor ... King of Frigia
Doretta Dunkley ... Queen of Frigia
Sally Nicholson ... Queen of Azuria
Deep Roy ... Princess Aura's Pet
Michelle Mildwater ... Special Movement
Marie Green ... Special Movement
Imogen Claire ... Special Movement
Kay Zimmerman ... Special Movement
Frederick Warder ... Special Movement (as Fred Warder)
Stephen Brigden ... Special Movement
Lionel Guyett ... Special Movement
Ken Robertson ... Special Movement
Andy Bradford ... Hawkman (as Andrew Bradford)
Bertram Adams ... Hawkman
Terry Forrestal ... Hawkman
Mike Potter ... Hawkman
John Sullivan ... Hawkman
Eddie Stacey ... Hawkman
John Lees ... Hawkman
Roy Scammell ... Hawkman
Kathy Marquis ... Sandmoon Girl
Sophie ... Sandmoon Girl
Kathy September ... Sandmoon Girl
Glenna Forster-Jones ... Sandmoon Girl (as Glenna Forster Jones)
Roseanne Romine ... Cytherian Girl (as Rosanne Romine)
Sneh ... Cytherian Girl
Magda ... Cytherian Girl
Shaka ... Cytherian Girl
Lindy ... Cytherian Girl
Viva ... Cytherian Girl
Beverly Andrews ... Cytherian Girl
Frances Ward ... Cytherian Girl
Kerry-Lou Baylis ... Cytherian Girl
Camella ... Cytherian Girl
Miranda Riley ... Frigian Girl
Lorraine Paul ... Aquarian Girl
Carolyn Evans ... Aquarian Girl
Celeste ... Aquarian Girl
Tina Thomas ... Aquarian Girl
Ruthie Barnett ... Aquarian Girl
Joe Iles ... Ardentian Man
Trevor Ward ... Ardentian Man
Alva Shelley ... Ardentian Man
Nik Abraham ... Ardentian Man
Leonard Hay ... Ardentian Man
Glen Whitter ... Ardentian Man
Jamalia ... Serving Girl in Ming's Chamber
Jill Lamb ... Serving Girl in Ming's Chamber
Sunanka ... Serving Girl in Ming's Chamber
Karen Johnson ... Serving Girl in Ming's Chamber
Gina ... Exotic Girl in Ming's Bedchamber
Raquel ... Exotic Girl in Ming's Bedchamber
Fai ... Exotic Girl in Ming's Bedchamber
Malcolm Dixon ... Dwarf
Tiny Ross ... Dwarf
Mike Edmonds ... Dwarf
John Ghavan ... Dwarf
Rusty Goffe ... Dwarf
Richard Jones ... Dwarf
Mike Cottrell ... Dwarf
Peter Burroughs ... Dwarf (as Peter Burrows)
John Lummiss ... Dwarf (as John Lummis)
Kenny Baker ... Dwarf
Bob Goody ... Azurian Man (as Robert Goody)
Daniel Venn ... Azurian Man
Peter St. James ... Azurian Man
Steve Payne ... Azurian Man (as Steven Payne)
Max Alford ... Azurian Man
Stephen Calcutt ... Azurian Man
Anthony Olivier ... Azurian Man
Jim Carter ... Azurian Man
Stuart Blake ... Azurian Man
Nigel Jeffcoat ... Azurian Man
Chris Webb ... Ming's Brute
Leslie Crawford ... Ming's Brute (as Les Crawford)
Peter Brace ... Ming's Brute
Terry Richards ... Ming's Brute
John Gallant ... Ming's Brute
Eddie Powell ... Ming's Brute