Gaius Servilius Casca

No one.

His full name was Publius Servilius Casca, but we do not know when he was born.

"Publius" is a proper name, the pseudonym under which Alexander Hamilton, James Madison, and John Jay first published the essays called "the Federalist Papers" in 1787 and 1788. The original Publius ("the public") was Publius Valerius Publicola ("friend of the people"), a Roman consul during the first six years of the Roman republic, 509-503 BC.

List of Caesar's assassins :

Gaius Cassius Longinus

Marcus Junius Brutus

Servius Sulpicius Galba

Quintus Ligarius

Lucius Minucius Basilus

Publius Servilius Casca Longus (brother of Gaius Servilius Casca)

Gaius Servilius Casca (brother of Publius Servilius Casca Longus and the one responsible for the first stab)

Decimus Junius Brutus Albinus

Lucius Tillius Cimber

Gaius Trebonius

Lucius Cassius Longinus (brother of Gaius Cassius Longinus)

Gaius Cassius Parmensis

Caecilius (brother of Bucolianus)

Bucolianus (brother of Caecilius)

Rubrius Ruga

Marcus Spurius

Publius Sextius Naso

Lucius Pontius Aquila

Petronius

Decimus Turullius

Pacuvius Antistius Labeo