Lt. Cmdr. Beaumont / Lieutenant Commander Beaumont (32 episodes, 1973-1976)
Lt. Peek (26 episodes, 1976-1977)
L / Reg. Fuller / Leading Regulator Fuller (21 episodes, 1973-1977)
Cmdr. Mark Nialls / Commander Mark Nialls (20 episodes, 1973-1976)
Lt. Cmdr. Kiley / Lieutenant Commander Kiley (20 episodes, 1973-1977)
MAA Heron / Master at Arms Heron (18 episodes, 1973-1976)
Lt. Last / Lieutenant Last (17 episodes, 1973-1974)
Lt. Wakelin / Lieutenant Wakelin (14 episodes, 1973-1977)
Cmdr. Alan Glenn (13 episodes, 1976)
Capt. Edward Holt (13 episodes, 1977)
Lt. Cmdr. Napier (13 episodes, 1977)
MAA Burnett / Chief Petty Officer Jones (8 episodes, 1973-1977)
Zoe Carter (8 episodes, 1977)
LMA Milner (5 episodes, 1974-1977)
L / Sea. Anderson (5 episodes, 1977)
Lieutenant Boswall (4 episodes, 1973)
AB Grogan / AB Steve Grogan (4 episodes, 1973-1976)
L / Std. Aitken / Barnes (4 episodes, 1973-1976)
Lieutenant Parry (3 episodes, 1973)
Lieutenant Commander Junnion (3 episodes, 1973)
Rear Admiral Mulliner / R-Admiral Staunton (3 episodes, 1973-1976)
L / Std. Jenkins (3 episodes, 1974)
Lt. Tagg (3 episodes, 1976)
Sue (3 episodes, 1976)
Anvey / Spooner (2 episodes, 1973-1976)
CPO Cranfield / Chief Petty Officer Donovan (2 episodes, 1973-1976)
Corbin / Taliah (2 episodes, 1973-1977)
Admiral Norris / First Sea Lord (2 episodes, 1973-1974)
Lt. Meville / Navigating Officer, HMS Omega (2 episodes, 1973-1974)
Baker / O'Leary (2 episodes, 1973-1976)
Capt. Calder / Captain (F) (2 episodes, 1974-1977)
Cmdr. Hirsch / FO Gibraltar (2 episodes, 1974-1977)
Harry Shotton / L / Sea. Lovell (2 episodes, 1974-1977)
CPO Firth / Lt. Spender RNR (2 episodes, 1974-1977)
Cmdr. Hilliard / Loader (2 episodes, 1974-1976)
President of the Court (2 episodes, 1974-1976)
Sgt. Watkins (2 episodes, 1974)
Lt. Palfrey RM (2 episodes, 1974)
Major (2 episodes, 1974)
General Tiering (2 episodes, 1974)
Cpl. Blundell (2 episodes, 1974)
Cmdr. Cleveland / Lt. Mannering RNR (2 episodes, 1976-1977)
Mid Vidler (2 episodes, 1976-1977)
Flynn (1 episode, 1973)
PO-Wtr. Willows (1 episode, 1973)
Commander Murton (1 episode, 1973)
AB Tom Drew (1 episode, 1973)
Angela (1 episode, 1973)
Maura (1 episode, 1973)
Lieutenant Commander Aubrey (1 episode, 1973)
Trepanov (1 episode, 1973)
AB Mick Turner (1 episode, 1973)
Phillip Tashing (1 episode, 1973)
Savona (1 episode, 1973)
Wtr. Parkins (1 episode, 1973)
Peggy Carter (1 episode, 1973)
Bunny (1 episode, 1973)
McFie (1 episode, 1973)
Lieutenant Grieve (1 episode, 1973)
Tolliday (1 episode, 1973)
Colin Bennett (1 episode, 1973)
Vera Cesnik (1 episode, 1973)
AB 'Porky' Walker (1 episode, 1973)
Mrs. Willows (1 episode, 1973)
Lieutenant Commander Hopwood (1 episode, 1973)
Janet McFie (1 episode, 1973)
Spiro (1 episode, 1973)
AB Wallace (1 episode, 1973)
Slater (1 episode, 1973)
LMA 'Doc' Peters (1 episode, 1973)
Diana Bennett (1 episode, 1973)
Erwin (1 episode, 1973)
Munro (1 episode, 1973)
Cutler (1 episode, 1973)
Minister Aziz (1 episode, 1973)
Master at Arms Wilson (1 episode, 1973)
C (1 episode, 1973)
Gina (1 episode, 1973)
AB Pomeroy (1 episode, 1973)
AB Adge (1 episode, 1973)
Petty Officer James (1 episode, 1973)
Lieutenant Commander Padden (1 episode, 1973)
Captain Ferhat (1 episode, 1973)
Rear Admiral Cardine (1 episode, 1973)
Flag Lieutenant (1 episode, 1973)
Leading Steward Brown (1 episode, 1973)
Large (1 episode, 1973)
Chief of the Defence Staff (1 episode, 1973)
Hamouda - Carpet Seller (1 episode, 1973)
Chief Petty Officer, HMS Omega (1 episode, 1973)
Loftus (1 episode, 1973)
Doc Pitman (1 episode, 1973)
Superintendent Bellamy (1 episode, 1973)
The Major (1 episode, 1973)
Chief Petty Officer Bates (1 episode, 1973)
CPO Watson (1 episode, 1973)
AB Selby (1 episode, 1973)
Gunboat Captain (1 episode, 1973)
Sergeant Woods (1 episode, 1973)
Blackie (1 episode, 1973)
Chief - Second CPO (1 episode, 1973)
Pettigrew (1 episode, 1973)
Fleet Operations Officer (1 episode, 1973)
Newsreader (1 episode, 1973)
Knox Palmer (1 episode, 1973)
Comms Rating, HMS Hero (1 episode, 1973)
Arab Officer (1 episode, 1973)
Tony (1 episode, 1973)
Leading Writer (1 episode, 1973)
Naval Liaison Officer (1 episode, 1973)
Barman (1 episode, 1973)
ERA, HMS Omega (1 episode, 1973)
Flag Officer, Gibralter (1 episode, 1973)
Customs Officer (1 episode, 1973)
Helmsman, HMS Omega (1 episode, 1973)
Docker (1 episode, 1973)
Cook Meadows (1 episode, 1973)
Afterplanesman, HMS Omega (1 episode, 1973)
Archibald (1 episode, 1973)
Arab Pilot (1 episode, 1973)
Arab Operator One (1 episode, 1973)
Arab Operator Two (1 episode, 1973)
Russian Secretary (1 episode, 1973)
Ops Room Operator (1 episode, 1973)
Sarah Foules (1 episode, 1974)
Sub-Lt. Penn (1 episode, 1974)
Zimba (1 episode, 1974)
L / Sea. Steele (1 episode, 1974)
Sanders (1 episode, 1974)
Karen Halbert (1 episode, 1974)
O'Morra (1 episode, 1974)
Maritain (1 episode, 1974)
Helen Danbury (1 episode, 1974)
Skipper Briggs (1 episode, 1974)
Angela Palfrey (1 episode, 1974)
Ron Walker (1 episode, 1974)
Mrs. Beaumont (1 episode, 1974)
Capt. Ragg (1 episode, 1974)
Ord. Jones (1 episode, 1974)
Norman King (1 episode, 1974)
Barman (1 episode, 1974)
Zardi (1 episode, 1974)
Sg. Lt. Cmdr. Whittaker (1 episode, 1974)
Stan Beaton (1 episode, 1974)
DNOT (1 episode, 1974)
Sg. Lt. Newcombe (1 episode, 1974)
Lescher (1 episode, 1974)
Paul Danbury (1 episode, 1974)
L / Sea. Crimlisk (1 episode, 1974)
Heather Gardiner (1 episode, 1974)
Grey (1 episode, 1974)
Defence Secretary (1 episode, 1974)
Constable Munk (1 episode, 1974)
AB Richards (1 episode, 1974)
Judge Advocate (1 episode, 1974)
R-Admiral Beaumont (1 episode, 1974)
Mr. Cook (1 episode, 1974)
Bosun's Mate (1 episode, 1974)
Williams (1 episode, 1974)
Luna (1 episode, 1974)
Minister of State (1 episode, 1974)
Joe Carter (1 episode, 1974)
Wickert / Wimmer (1 episode, 1974)
AB Radcliffe (1 episode, 1974)
Rames (1 episode, 1974)
Quartermaster (1 episode, 1974)
Officer of the Court (1 episode, 1974)
Std. Selkirk (1 episode, 1974)
The Norwegian A.D.C. (1 episode, 1974)
Ahmed (1 episode, 1974)
Muller (1 episode, 1974)
CPO Cook Mantell (1 episode, 1976)
The Ape (1 episode, 1976)
Lt. Cmdr. Tremayne (1 episode, 1976)
Yachtsman (1 episode, 1976)
AB Scobie (1 episode, 1976)
Lt. Dean (1 episode, 1976)
PO Mills (1 episode, 1976)
R-Admiral Chandy (1 episode, 1976)
Sg. Lt. Gladman (1 episode, 1976)
Julia Brinton (1 episode, 1976)
Barman (1 episode, 1976)
AB Smith (1 episode, 1976)
Lt. Cmdr. Huffam (1 episode, 1976)
Sg. Lt. Ansell (1 episode, 1976)
R-Admiral Brinton (1 episode, 1976)
L / Sea. Brewer (1 episode, 1976)
Wing Cmdr. Blazey (1 episode, 1976)
Belton (1 episode, 1976)
Velrie Kenyon (1 episode, 1976)
Anna Cavan (1 episode, 1976)
Sam Malcolm (1 episode, 1976)
Petrie (1 episode, 1976)
Cmdr. Rockford (1 episode, 1976)
Lt. Cavan (1 episode, 1976)
Katharina (1 episode, 1976)
Pat (1 episode, 1976)
Capt. Herrick (1 episode, 1976)
Joe Murphy (1 episode, 1976)
Steward (1 episode, 1976)
Seaman Dorrity (1 episode, 1976)
Rita Kersey (1 episode, 1976)
Cmdr. Creegan (1 episode, 1976)
Kendall (1 episode, 1976)
Edith (1 episode, 1976)
Barron (1 episode, 1976)
CPO Lusher (1 episode, 1976)
Bobbie (1 episode, 1976)
David Kenyon (1 episode, 1976)
Lewis (1 episode, 1976)
Lily Bevis (1 episode, 1976)
Edwards (1 episode, 1976)
Capt. Redwell (1 episode, 1976)
Judge Advocate (1 episode, 1976)
Graham Firth (1 episode, 1976)
Councillor Acott (1 episode, 1976)
Sub-Lt. Weyland (1 episode, 1976)
Receptionist (1 episode, 1976)
Chief Experimenter (1 episode, 1976)
MEAP Ellis (1 episode, 1976)
Henderson (1 episode, 1976)
Lt. Ringshaw (1 episode, 1976)
Policeman (1 episode, 1976)
AB Kackson (1 episode, 1976)
Haslam (1 episode, 1976)
Det. Sgt. Maynard (1 episode, 1976)
TASI (1 episode, 1976)
AB Edwards (1 episode, 1976)
Clarke (1 episode, 1976)
Plotter (1 episode, 1976)
Officer of the Court (1 episode, 1976)
Judge (1 episode, 1976)
Diana (1 episode, 1976)
Lt. Kennedy (1 episode, 1976)
Norma (1 episode, 1976)
Eddie (1 episode, 1976)
Cook (1 episode, 1976)
Amanda (1 episode, 1977)
CPO Straker (1 episode, 1977)
AB Clark (1 episode, 1977)
Robertson (1 episode, 1977)
Lt. Cmdr. Ledson (1 episode, 1977)
Driss (1 episode, 1977)
Zee Khay Lim (1 episode, 1977)
Panmuir (1 episode, 1977)
Sub-Lt. Carwith (1 episode, 1977)
Barbara Perrin (1 episode, 1977)
Victor Chelten (1 episode, 1977)
PO Asdale (1 episode, 1977)
Lt. Scarf (1 episode, 1977)
Jenny Chelten (1 episode, 1977)
Walter Perrin (1 episode, 1977)
Ralph Perrin (1 episode, 1977)
Meryon (1 episode, 1977)
Vice Chief of Naval Staff (1 episode, 1977)
FOCAS (1 episode, 1977)
AB Robbins (1 episode, 1977)
Cobbold (1 episode, 1977)
Arabella Ledson (1 episode, 1977)
Insp. Fielding (1 episode, 1977)
Mr. Parsons (1 episode, 1977)
NAAFI Manager (1 episode, 1977)
Henry Witzel (1 episode, 1977)
Captain-in-Charge (1 episode, 1977)
Chang (1 episode, 1977)
Air. Burridge / L (1 episode, 1977)
Gage (1 episode, 1977)
AB Gifford (1 episode, 1977)
Chief Insp. Grainger (1 episode, 1977)
Chief Wren Callins (1 episode, 1977)
MC (1 episode, 1977)
FOO (1 episode, 1977)
AB Blane (1 episode, 1977)
Sg. Lt. Cmdr. Doyle RNR (1 episode, 1977)
Lily Tan (1 episode, 1977)
Samantha Blane (1 episode, 1977)
Akiko (1 episode, 1977)
Lister (1 episode, 1977)
Cmdr. Hanley RNR (1 episode, 1977)
Strudwick (1 episode, 1977)
Lodge (1 episode, 1977)
POMEM Harris (1 episode, 1977)
Lt. Cmdr. Lane (1 episode, 1977)
Capt. Bradman RM (1 episode, 1977)
Louise Witzel (1 episode, 1977)
Lawson (1 episode, 1977)
Mabel Gifford (1 episode, 1977)
AB Tull (1 episode, 1977)
Lt. Barr (1 episode, 1977)
AB Wright (1 episode, 1977)
Vince Weston (1 episode, 1977)
Admiral's Secretary (1 episode, 1977)
Lt. Proctor (1 episode, 1977)
Government Official (1 episode, 1977)
Dawlish (1 episode, 1977)
Amphibious Ops Officer (1 episode, 1977)
Lillie (1 episode, 1977)
Dockyard Worker (1 episode, 1977)
L / Sea. Gray (1 episode, 1977)
Airport receptionist (1 episode, 1977)
Sailor (uncredited) (1 episode, 1976)