Kell (23rd century)
- Full Name: Kell
- Also known as: Jon Anderson
- Species: Klingon
- Gender: Male
- Father deceased 2242, Battle of Donatu V (TOS Novel: Errand of Vengeance: The Edge of the Sword)
- Mother still alive as of 2266 (TOS Novel: Errand of Vengeance: The Edge of the Sword)
- Brother: Karel
- Four years younger than Karel (TOS Novel: Errand of Vengeance: Killing Blow)
- By 2266: Signal analysis, Imperial Intelligence, Klingon Empire (TOS Novel: Errand of Vengeance: The Edge of the Sword)
- Recruited for betleH 'etlh (TOS Novel: Errand of Vengeance: The Edge of the Sword)
- Surgically altered to more resemble a Human for purposes of infiltration (TOS Novel: Errand of Vengeance: The Edge of the Sword)
- March 12, 2266: Embedded as security officer, Starfleet; USS Enterprise, under identity of Jon Anderson (TOS Novel: Errand of Vengeance: The Edge of the Sword)
- March 18, 2266: Awarded Starfleet Citation for Conspicuous Gallantry, Starfleet Medal of Honor for actions on FGC-1324 IV (TOS Novel: Errand of Vengeance: The Edge of the Sword)