Sergeant

Sergeant was a military or police rank.

The following list is divided into broad types of sergeant, and then alphabetised within each of those types.

Unnamed

 * Custody sergeant (TV: Small Worlds)
 * Desk sergeant (TV: Blink)
 * Station sergeant (TV: The Daleks' Master Plan)

Named

 * Abeland, a police officer from the village of Farringham (PROSE: Human Nature)
 * Baker, a police officer from the village of Three Sisters (PROSE: The Banquo Legacy)
 * Bradshaw, a sergeant who worked under Detective Inspector Patricia Menzies (AUDIO: The Crimes of Thomas Brewster)
 * Andy Davidson, a former co-worker of Gwen Cooper, whose promotion to police sergeant may have had something to do with his part in Children of Earth (PROSE: Long Time Dead)
 * Cormac, a Glaswegian police sergeant who liased with Jack Harkness, when Torchwood Two called the latter to Scotland (COMIC: Captain Jack and the Selkie)
 * Dennison (TV: Planet of the Dead)
 * Ian Jenner, a Metropolitan Police Service sergeant who was on the trail of Christina de Souza (TV: Planet of the Dead)
 * Kyle (TV: The Talons of Weng-Chiang)
 * Lange, a Metropolitan Police sergeant known to Sgt Quick (AUDIO: The Similarity Engine)
 * Markham, an Edwardian police sergeant (TV: Black Orchid)
 * Harry Pike, a London police sergeant in the mid-21st century, who was the father of Darius Pike, an ally of K9 Mark 2 (TV: The Last Precinct)
 * Price, who was in charge of security at 10 Downing Street during the Slitheen family takeover of the British government (TV: World War Three)
 * Percival Quick, a sergeant who was friendly with George Litefoot and Henry Gordon Jago (TV: The Talons of Weng-Chiang, AUDIO: The Bloodless Soldier, The Bellova Devil, et al.)
 * Vince Wilson, a police officer in Moreton Harwood who briefly met Sarah Jane Smith (TV: A Girl's Best Friend)

Military sergeants
The "regular" military is considered to be mainstream, armed forces. Not included here are reserve units, such as the Home Guard, the National Guard, the Territorial Army or the like.

Unnamed

 * Sergeant (The Highlanders), who served under Lieutenant Algernon Ffinch (TV: The Highlanders)
 * Sergeant (The War Machines) (TV: The War Machines)
 * Duty sergeant, who imprisoned Jack Harkness (TV: Children of Earth: Day Five)

Named

 * Sandra Applegate, a sergeant stationed at Caregan barracks at the time of a Torchwood Three investigation of the Cowbridge training camp (PROSE: Another Life)
 * Albert Arnold, a staff sergeant in the regular British Army unit that pre-dated UNIT (TV: The Web of Fear)
 * Bee, a British Army soldier stationed at Cowbridge who mysteriously went rogue and committed several murders, forcing Torchwood Three to investigate (PROSE: Another Life)
 * Calder, a bomb disposal technician (TV: Resurrection of the Daleks)
 * Duffy, a British Army sergeant who ran the detention centre that briefly incarcerated the Third Doctor and Sarah Jane Smith (TV: Invasion of the Dinosaurs)
 * Johnson, a British Army sergeant who initially tried to keep Gwen Cooper away from a meteorite impact site (TV: Day One)
 * Leigh, a World War II British sergeant who served under Commander Millington at Maiden's Point (TV: The Curse of Fenric)
 * Peters, a regular army sergeant who served under Major Branwell and briefly took the commands of Zoe Heriot (TV: The Invasion)
 * Danny Pink, a former British Army sergeant (TV: The Caretaker) who became a mathematics teacher at Coal Hill School (TV: Into the Dalek)
 * Rilke, an 18th-century red coat (AUDIO: City of Spires)
 * Mike Smith, a Royal Air Force sergeant who was a member of The Association and once had a fleeting relationship with Ace (TV: Remembrance of the Daleks)
 * Willis, a World War I sergeant caught up in the War Lord's War Games (TV: The War Games)
 * Wood, a British Army sergeant from World War I, who once tortured Hex. (AUDIO: No Man's Land)
 * Sokkuri, a sergeant for an unofficial military on a desolate Earth. (COMIC: The Child of Time)

Unnamed

 * Sergeant (TV: The Reign of Terror)
 * American sergeant (TV: The Tenth Planet)
 * Sergeant Ishem, in charge of the detail guarding the Eleventh Doctor at Area 51 (TV: Day of the Moon)

Named

 * Gazelle, a likely imaginary figure (AUDIO: Zagreus)
 * Haval, a sergeant-at-arms to the Lord Geoffrey de Beauvain during the Crusades (COMIC: The Magician)
 * Ishem, a United States Air Force sergeant guarding the Eleventh Doctor's dwarf star alloy prison (TV: Day of the Moon)
 * Kortez, an eventual Colonel in UNISYC, who originally met the Doctor when he was a sergeant (PROSE: Alien Bodies)
 * Jeff Kovacs, a World War II-era American sergeant (PROSE: Autumn Mist)
 * Prozorov, a World War II-era Russian sergeant who served under Captain Sorin (TV: The Curse of Fenric)
 * Rugg, an imaginary sergeant called into existence by the Celestial Toymaker (TV: The Celestial Toymaker)
 * A sergeant to Benik (TV: The Enemy of the World)
 * Thompson, a Confederate sergeant forced to participate in the War Games run by the War Lord (TV: The War Games)
 * Trofimov, a World War II-era Russian sergeant who served under Captain Sorin (PROSE: The Curse of Fenric)

Named

 * Paterson, an ex-British Territorial Army sergeant whom the Seventh Doctor and Ace met (TV: Survival)

Unnamed

 * Sergeant (The Five Doctors), who was on Colonel Charles Crichton's staff at the time of the Brigadier's retirement (TV: The Five Doctors)
 * Sergeant (Spearhead from Space) (TV: Spearhead from Space)
 * UNIT Sergeant (The Ambassadors of Death), who tried to commandeer a helicopter in mid-air. (TV: The Ambassadors of Death)
 * UNIT sergeant (TV: The Time Monster)

Named

 * Carol Bell, who served on the Brigadier's personal staff as a corporal before her eventual promotion to sergeant (TV: The Mind of Evil, PROSE: Speed of Flight)
 * John Benton, who served on the Brigadier's personal staff for a number of years, and who knew at least the Second, Third and Fourth Doctors, as well as several of the Doctor's other companions, and was later promoted to Warrant Officer Class 1 (TV: The Invasion, The Ambassadors of Death, Robot)
 * Calhoun who served under Captain Magambo (TV: Planet of the Dead)
 * French who served under General Alistair Gordon Lethbridge-Stewart (AUDIO: The Coup)
 * Hart (TV: Doctor Who and the Silurians)
 * Henderson (TV: The Seeds of Doom)
 * Machi, a rogue UNIT soldier who once attempted to kill the Eleventh Doctor (COMIC: The Golden Ones)
 * Robin Marshall, a guard assigned to UNIT's Vault 75-73/Whitehall who was known to Liz Shaw (AUDIO: Shadow of the Past)
 * Osgood, a technical sergeant who helped the Doctor circumvent a barrier around Devil's End (TV: The Dæmons)
 * James Ramsay, a UNIT soldier integral to an Auton invasion of Earth (HOMEVID: Auton Trilogy)
 * Talbot, who died while working with the Tenth Doctor and Majenta Pryce (COMIC: The Age of Ice)
 * Mike Yates, who was a sergeant at the time he first met the Third Doctor and Liz Shaw (PROSE: The Eye of the Giant)
 * Walters, who served under the Brigadier (TV: The Invasion)
 * Willis, a UNIT sergeant (AUDIO: The Wasting)
 * Zbrigniev, who served under Brigadier Winifred Bambera (TV: Battlefield)

Named

 * Bryn a soldier whom the Eighth Doctor, Charley Pollard and C'rizz met in the Divergent Universe (AUDIO: The Twilight Kingdom)
 * Cook, a sergeant in a prison, though not actually a government-run one (PROSE: The Indestructible Man)
 * Martin Frith, head of security for the Forge at the time of the start of Project: Lazarus (AUDIO: Project: Lazarus)
 * Kracauer, the leader of Kane's forces on Iceworld (TV: Dragonfire)
 * Mitchell, a trooper (TV: Earthshock)
 * Stewart, a sergeant in a militia force under the control of Mackenzie, who once had Jamie McCrimmon in his squad (PROSE: The Indestructible Man)
 * Joseph Willow, a civilian who played the part of a sergeant in Sir George Hutchinson's war games in the village of Little Hodcombe (TV: The Awakening)
 * Zogroth, a sergeant of the Wrarth Warriors (COMIC: The Star Beast)