* Marcus Antonius (Mark Antony): Antony was one of Caesar's closest allies and served as his right-hand man during many of his military campaigns. After Caesar's death, Antony became one of the leaders of the Second Triumvirate and played a key role in the Roman Civil War.
* Marcus Aemilius Lepidus: Lepidus was another of Caesar's close allies and served as his Master of the Horse during his Gallic Wars campaign. After Caesar's death, Lepidus became one of the leaders of the Second Triumvirate and played a key role in the Roman Civil War.
* Gaius Julius Caesar Octavianus (Octavian): Octavian was Caesar's adopted son and heir. After Caesar's death, Octavian became one of the leaders of the Second Triumvirate and played a key role in the Roman Civil War. He eventually emerged as the sole ruler of the Roman Empire and became known as Augustus.
* Marcus Vipsanius Agrippa: Agrippa was a close friend and ally of Octavian and played a key role in his military campaigns. He was also responsible for many of the public works projects that were undertaken during Octavian's reign, such as the Pantheon and the Colosseum.
* Maecenas: Maecenas was a wealthy patron of the arts and a close friend of Octavian. He was responsible for encouraging many of the cultural and intellectual achievements that took place during Octavian's reign, such as the works of Virgil, Horace, and Ovid.
These were just a few of the key individuals who helped Caesar run the Roman Empire. Their efforts were essential in maintaining the stability and prosperity of the empire during a time of great change and turmoil.