- Robert Shaw
- Â Capt. Dan Tempest 37 episodes, 1956-1957
- Paul Hansard
- Â Taffy / ... 35 episodes, 1956-1957
- Brian Rawlinson
- Â Gaff Guernsay / ... 34 episodes, 1956-1957
- Edwin Richfield
- Â Crewman Armando 32 episodes, 1956-1957
- Peter Hammond
- Â Lt. Edward Beamish 26 episodes, 1956-1957
- Roy Purcell
- Â 1st Spanish Guard / ... 23 episodes, 1956-1957
- Neil Hallett
- Â Bosun Bassett / ... 20 episodes, 1956-1957
- Wilfred Downing
- Â Crewman Dickon / ... 16 episodes, 1956-1957
- Willoughby Gray
- Â Pop / ... 14 episodes, 1956-1957
- Dennis Lacey
- Â 1st Spanish Sailor / ... 16 episodes, 1956-1957
- Terence Cooper
- Â Costellaux / ... 13 episodes, 1956-1957
- Alec Mango
- Â Van Brugh 9 episodes, 1956-1957
- Rupert Evans
- Â 2nd Man Shaving / ... 9 episodes, 1956-1957
- Tony Thawnton
- Â Captain Scobie / ... 8 episodes, 1956
- John Gatrell
- Â Merchant Captain / ... 5 episodes, 1956-1957
- Jane Griffiths
- Â Paula Meadows / ... 4 episodes, 1956-1957
- Brian Worth
- Â Calico Jack Rackham / ... 4 episodes, 1956-1957
- Gillian Owen
- Â Maria 3 episodes, 1957
- Alec Clunes
- Â Gov. Woodes Rogers 3 episodes, 1956
- Roger Delgado
- Â Don Ferdinand Esteban / ... 3 episodes, 1957
- Hugh David
- Â Crewman Benjy 3 episodes, 1956
- Andrew Crawford
- Â Capt. Hornigold 3 episodes, 1956
- Peter Bennett
- Â Costellaux / ... 3 episodes, 1956
- Ewen Solon
- Â Spanish Admiral / ... 2 episodes, 1957
- Joan Sims
- Â Abigail 2 episodes, 1956-1957
- Alfred Burke
- Â Marsh / ... 2 episodes, 1957
- George Margo
- Â Blackbeard 2 episodes, 1956
- John Harvey
- Â Dougal / ... 2 episodes, 1957
- Colin Douglas
- Â Capt. Tim De Groot / ... 2 episodes, 1957
- Willoughby Goddard
- Â Phineas Bunch / ... 2 episodes, 1956-1957
- Jane Asher
- Â Girl / ... 2 episodes, 1957
- Anna Walmsley
- Â Betsy Doughty / ... 2 episodes, 1956-1957
- David Ritch
- Â Lt. Blasco / ... 2 episodes, 1957
- Edward Malin
- Â Dawson / ... 2 episodes, 1956-1957
- Patrick Jordan
- Â Jamie / ... 2 episodes, 1956
- Max Faulkner
- Â Guard / ... 2 episodes, 1957
- Dennis Edwards
- Â Officer / ... 2 episodes, 1957
- Ivan Craig
- Â Capt. Steele / ... 1 episode, 1957
- Dawson France
- Â Piggot / ... 1 episode, 1957
- Robert Perceval
- Â Johnson / ... 2 episodes, 1957
- Judy Wyler
- Â Lolita 1 episode, 1956
- Derek Sydney
- Â Lieutenant / ... 1 episode, 1957
- John Dearth
- Â Bellows 1 episode, 1957
- Pearl Prescod
- Â Nanny Macao 1 episode, 1957
- Hazel Court
- Â Anne Bonney / ... 1 episode, 1956
- Anthony Dawson
- Â Captain Flask 1 episode, 1956
- Bill Owen
- Â Clip West 1 episode, 1956
- Ferdy Mayne
- Â El Supremo 1 episode, 1956
- André Morell
- Â Governor 1 episode, 1956
- Eric Pohlmann
- Â Capt. Hernandez 1 episode, 1956
- Dino Galvani
- Â Dr. Francisco Gonzales 1 episode, 1956
- Richard Johnson
- Â Pegleg 1 episode, 1957
- Adrienne Corri
- Â Mistress Higgins 1 episode, 1957
- Miles Malleson
- Â Josiah Parkerhouse 1 episode, 1957
- Virginia Maskell
- Â Rebecca Bradbury 1 episode, 1957
- Sarah Lawson
- Â Lady Hilary Winrod 1 episode, 1957
- Jean Cadell
- Â Marquesa 1 episode, 1957
- Tommy Duggan
- Â Martin 1 episode, 1957
- Michael Caridia
- Â Edwin Drewit 1 episode, 1957
- Peter Soule
- Â Flip Purdy 1 episode, 1957
- Sidney James
- Â Chantey Jack 1 episode, 1956
- Noel Purcell
- Â Pat 1 episode, 1956
- Petra Davies
- Â Christine Hawkins 1 episode, 1956
- Roger Snowdon
- Â Rodrigues 1 episode, 1956
- Eynon Evans
- Â Deacon 1 episode, 1956
- Marne Maitland
- Â Turk 1 episode, 1957
- Richard Pasco
- Â Rodriquez 1 episode, 1957
- Alex Scott
- Â Black Bart 1 episode, 1957
- Conrad Phillips
- Â Sebastian 1 episode, 1957
- Noel Coleman
- Â Sir Joplin James 1 episode, 1957
- John Salew
- Â Cookie 1 episode, 1957
- Howard Pays
- Â Pennington 1 episode, 1957
- Michael Rittermann
- Â Tazco 1 episode, 1957
- Ena Burrill
- Â Mother Doughty 1 episode, 1957
- Robert Percival
- Â Gov. Charles Johnson 1 episode, 1957
- Earl Cameron
- Â Sam 1 episode, 1956
- Pamela Wright
- Â Megan, Governor's Daughter 1 episode, 1956
- Salvin Stewart
- Â One-Eye 1 episode, 1956
- Robert Hardy
- Â Lord Hinch 1 episode, 1957
- Andrew Keir
- Â Laird McGregor 1 episode, 1957
- Ballard Berkeley
- Â Rafton 1 episode, 1957
- Frederick Treves
- Â Quetzl 1 episode, 1957
- Danny Green
- Â Noah 1 episode, 1957
- Derek Waring
- Â George Bradbury 1 episode, 1957
- Ronan O'Casey
- Â Understandable Perkins 1 episode, 1957
- Maureen Davis
- Â Emily 1 episode, 1957
- Maxwell Shaw
- Â Sharp 1 episode, 1957
- Andre Charisse
- Â Louis Brion 1 episode, 1957
- Bruno Barnabe
- Â Capt. Gomez 1 episode, 1957
- Ilona Ference
- Â Mrs. Drewit 1 episode, 1957
- Alfie Bass
- Â Sawney 1 episode, 1956
- Dalia Penn
- Â Juanita 1 episode, 1956
- Roger Gage
- Â Juan 1 episode, 1957
- Sally Pierce
- Â Barmaid 1 episode, 1957
- Norma Parnell
- Â Sarah Brion 1 episode, 1957
- Noel Hood
- Â Governor's Wife 1 episode, 1956
- Laurence Herder
- Â Charlie 1 episode, 1957
- Michael Golden
- Â Capt. Barker 1 episode, 1957
- Bernard Brown
- Â Chris Meadows 1 episode, 1957
- Meadows White
- Â Groggins 1 episode, 1957
- Diane Potter
- Â Bessie 1 episode, 1957
- Jack Hedley
- Â Raikes 1 episode, 1957
- Charles Houston
- Â David McGregor / ... 1 episode, 1957
- Jan Miller
- Â Raquel 1 episode, 1957
- Anne Padwick
- Â Woman with Baby 1 episode, 1957
- Barry Fennell
- Â Boy 1 episode, 1957
- Robert Rietty
- Â Capt. Philip Catalan 1 episode, 1956
- Philip Ashley
- Â Spanish Officer 1 episode, 1956
- Anne Blake
- Â Mrs. Wainwright 1 episode, 1957
- Frank Singuineau
- Â Chief 1 episode, 1957
- Claude Kingston
- Â Second Boy 1 episode, 1957
- Edmond Warwick
- Â Magistrate Mortimer 1 episode, 1957
- Gay Cameron
- Â Sheila McLellan 1 episode, 1957
- Lewis Gedge
- Â Captain Mainwaring 1 episode, 1957
- Eileen Elton
- Â Molly 1 episode, 1957
- Paul Eddington
- Â Capt. La Forte 1 episode, 1957
- Brian Oulton
- Â Maj. Langley 1 episode, 1957
- John Sullivan
- Â Doughty Son 1 episode, 1957
- Seymour Green
- Â Constable Herridge 1 episode, 1957
- Peter Garstin
- Â Spanish Prisoner 1 episode, 1957
- Julian Strange
- Â Mate 1 episode, 1956
- Michael Rathborne
- Â Look-out 1 episode, 1956
- Wilfrid Brambell
- Â Old Man 1 episode, 1957
- Noel Davis
- Â Jenks 1 episode, 1957
- Walter Horsbrugh
- Â Magistrate 1 episode, 1957
- Raymond Ray
- Â Old Tom 1 episode, 1957
- Derek Tansley
- Â Sylvester 1 episode, 1957
- Peter Retey
- Â Auctioneer 1 episode, 1957
- Dermot MacMahon
- Â Doughty Son 1 episode, 1957
- Serge Lemince
- Â Pym' Slave 1 episode, 1957
- Joan Eccles
- Â Old Woman 1 episode, 1956
- Stringer Davis
- Â Admiral Bingham 1 episode, 1957
- Oliver MacGreevy
- Â Noll 1 episode, 1957
- Patrick Connor
- Â Sergeant 1 episode, 1957
- Frank Pendlebury
- Â Servant 1 episode, 1957
- Rajah Chaudhuri
- Â Canteyo 1 episode, 1957
- Derek Nimmo
- Â Lord Winrod 1 episode, 1957
- Diana Potter
- Â 2nd Woman 1 episode, 1956
- Merrill Colebrook
- Â 3rd Woman 1 episode, 1956
- John Schlesinger
- Â Pigtail 1 episode, 1956
- Yvonne Romain
- Â Maria 1 episode, 1956
- Frank Olegario
- Â Old Indian 1 episode, 1956
- Stephanie Connell
- Â Baby Hornigold (uncredited) 1 episode, 1956
- Charles Price
- Â Crewman / ... (uncredited) 3 episodes, 1957
- Guy Standeven
- Â Pirate (uncredited) 2 episodes, 1956-1957
- Jim Brady
- Â Henchman / ... (uncredited) 2 episodes, 1957
- Ned Lynch
- Â Crewman / ... (uncredited) 2 episodes, 1957
- Patrick Troughton
- Â Doorman at Doctor's House (uncredited) 1 episode, 1956
- Philip Stewart
- Â Pirate (uncredited) 1 episode, 1956
- Jean Bloor
- Â Mrs. Miles (uncredited) 1 episode, 1957
