The conspirators:

"Gaius Cassius Longinus
Marcus Junius Brutus
Servius Sulpicius Galba
Quintus Ligarius
Lucius Minucius Basilus
Gaius Servilius Casca (brother of Publius Servilius Casca Longus)
Publius Servilius Casca Longus (brother of Gaius Servilius Casca 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
Lucius Cornelius Cinna (son of 4 time consul of the same name)"
https://en.wikipedia.org/wiki/Assassination_of_Julius_Caesar