- This is John of Gaunt in Shakespeare’s Richard II. Surname ? Lancaster ? Plantagenet ?
- John Hume, a minor character in Henry VI Part 2 by Shakespeare.
- John Marduk, who may or may not be in John by Annie Baker.
- John (Jack) Worthing in The Importance of Being Earnest by Oscar Wilde.
- John Morton. Shakespeare again. Richard III this time.
- John Tate in DNA by Dennis Kelly.
- King John in King John by Shakespeare. Surname ? A Plantagenet.
- John Proctor in The Crucible by Arthur Miller.
- Don John in Much Ado About Nothing.
- John (Jack) Tanner in Bernard Shaw’s Man and Superman.