| [A2528] | Krzysztof Bylina | person | represented actor |
| [A2036] | Stanisław Byliński (died before 19th March 1536) | person | author, dedicator |
| [A1208] | Abraham Bzowski (1567 - 31 December 1637) | person | author, dedicator, represented actor |
| [A2166] | Giuseppe Cacchi (ca 1535 - ca 1593) | person | printer |
| [A886] | Michael Caelius (7 September 1492 - 13 December 1559) | person | author |
| [A2686] | Gaius Iulius Caesar (father of Caesar) (ca 140 - 85 BC) | person | represented actor |
| [A872] | Gaius Iulius Caesar (100 BCE - 15 March 44 BCE) | person | author, represented actor |
| [A1228] | Ioannes Caffman (ca 16th c.) | person | author |
| [A494] | John Caius (6 October 1510 - 29 July 1573) | person | draughtsman |
| [A2235] | Caius (pope) (died 22 April 296) | person | represented actor |
| [A1934] | Thomas Cajetan (20 February 1469 - 9 August 1534) | person | author |
| [A67] | Gerwin Calenius (ca 1525 - 1600) | person | printer |
| [A1370] | Caligula (Roman emperor) (31 August 12 - 24 January 41) | person | represented actor |
| [A1560] | Callisthenes of Olynthus (ca 360 BCE - 327 BCE) | person | represented actor |
| [A3162] | Callixtus II (Guy of Burgundy) (ca 1065 – 13 December 1124) | person | represented actor |
| [A3161] | Callixtus III (Alfonso de Borgia) (fl. 31 December 1378 - 6 August 1458) | person | represented actor |
| [A2695] | Calpurnia (wife of Caesar) (ca 76 BCE - after 44 BCE) | person | represented actor |
| [A1076] | John Calvin (10 July 1509 - 27 May 1564) | person | author, represented actor |
| [A2952] | Calvinist printing house (Łaszczów) | corporate actor | |
| [A139] | Andreas Cambier (fl. 1597 - 1620) | person | printer |
