|The title of this article is conjecture based on information revealed in the A Song of Ice and Fire novels and may be subject to change.
Preston Greenfield is a background character in Game of Thrones. He is played by an unidentified extra and first mentioned by name in "Two Swords". Ser Preston is a knight and a member of the Kingsguard, defending King Joffrey Baratheon as he defended King Robert Baratheon before him.
After Jaime returns to King's Landing, he goes over with Ser Meryn the placement of the Kingsguard members in defensive positions during Joffrey's wedding, and mentions Ser Preston.
|Season One appearances|
|Winter is Coming||The Kingsroad||Lord Snow||Cripples, Bastards and Broken Things||The Wolf and the Lion|
|A Golden Crown||You Win or You Die||The Pointy End||Baelor||Fire and Blood|
|Season Three appearances|
|Valar Dohaeris||Dark Wings, Dark Words||Walk of Punishment||And Now His Watch is Ended||Kissed by Fire|
|The Climb||The Bear and the Maiden Fair||Second Sons||The Rains of Castamere||Mhysa|
In the books
In the A Song of Ice and Fire novels, Greenfield is a member of Robert Baratheon's Kingsguard. He is noted as the shortest member of the Kingsguard. He accompanied Robert on his boar hunting trip where he was mortally wounded. He pledges allegiance to Joffrey following Robert's death.
Ser Preston is killed in the Riot of King's Landing and replaced by Ser Balon Swann, who has been mentioned in the series but not as part of the Kingsguard. In the series no Kingsguard is shown to be killed by the rioters.
Ser Preston is later mentioned as being alive at the time of Joffrey's wedding, so apparently he simply wasn't killed in the riots in the TV continuity.
|Lord:||King Tommen I||Heir:||Princess Myrcella Baratheon|
|Seat:||Red Keep, King's Landing||Lands:||The Crownlands|
|Title(s):||King of the Andals and the First Men · Lord of the Seven Kingdoms · Protector of the Realm|
|Current members:||Queen Regent Cersei Lannister|
|Deceased members:||Robert Baratheon · King Joffrey I|
|Household:||Lady Margaery Tyrell · Grand Maester Pycelle · Ser Jaime Lannister · Ser Meryn Trant · Ser Preston Greenfield · Ser Arys Oakheart · Ser Boros Blount · Ser Balon Swann · Ser Ilyn Payne · Lord Gyles Rosby · Ser Lancel Lannister · Ser Aron Santagar · Qyburn · Septa Eglantine|