Carter

 occurs seberal times in the Doctor Who universe and the relevant real world. They are listed below in alphabetical order by surname. If no surname is available, alphabetization occurs by the disambiguation term — that is, the bit between the parentheses in a title like Waitress (Random Shoes).

As only name

 * P.C. Carter (KAC: A Girl's Best Friend)
 * Carter (PDA: Amorality Tale)
 * Carter (DW: Let's Kill Hitler, The Wedding of River Song)
 * Carter (DW: The Doctor's Daughter)
 * Carter (DWM: The Flood)
 * Dr. Carter (DW: The Hand of Fear)

As surname

 * Alice Carter (TW: Children of Earth)
 * Byron Carter (PDA: Salvation)
 * Gerald Carter, an early 20th century head of Torchwood 3
 * Joe Carter (TW: Children of Earth: Day Three)
 * Mary Carter (The Dalek Project)
 * Maxine Carter (MA: Killing Ground)
 * Penny Carter (DW: Partners in Crime)
 * Steven Carter (TW: Children of Earth)

As Real World Individuals

 * Howard Carter (BFA: False Gods)
 * Jimmy Carter (EDA: Interference - Book One)

Featured

 * Wilfred Carter, who played Sir Reginald Styles in DW: Day of the Daleks

Monster Specialists

 * Dave Carter, who was a supporting actor in several stories during the early 1970s

extra

 * Patrick Carter, who played the Bosun in DW: The Chase.

Vocal

 * Georgina Carter, a voice actor for Big Finish Productions, who was in Jubilee, amongst others.
 * Jim Carter, who played the role of Brother Bernard in BFA: The Book of Kells.

Prose

 * Ian J. Carter, a writer of prose fiction, whose work has appeared in Tales of the Solar System

Comics

 * Kris Carter, a colourist, principally working on Torchwood comics

Audio

 * Howard Carter, composer for Big Finish Productions