Namesakes
Bishops of Rome and the Popes:
1 pope
Caius 283-296 
Saints:
2 saints, 1 blessed
Saint Caius ?-296
Saint Gaius Francis (a.k.a. Caius) ?-1597
Blessed Caius ?-1624
Shakespearian Characters:
7 characters
Caius King Lear
Doctor Caius The Merry Wives of Windsor
Caius Titus Andronicus
Caius Lucius Cymbeline
Caius Marcius Coriolanus Coriolanus
Caius Proculeius Antony and Cleopatra
Caius Ligarius Julius Caesar