Antony and Caesar were the best of friends, as well as being fairly close relatives. Antony made himself ever available to assist Caesar in carrying out his military campaigns.
In his youth, Antony was known to keep dubious company, revelling in numerous affairs and general scandalous behaviour.
In 54 BC, Antony received the heartiest of welcomes. Even as the hardest fighting was yet to come, Antony would prove a vital component in Caesar's eventual victory.
In 44 BC, Antony joined Caesar as Consul and it was Antony who offered Caesar a diadem (crown) at the Lupercalia festival of that year. He continued to support Caesar's agenda and certainly was intrumental in forcing through many honors for the great conqueror.
After Caeser's assassination, Antony formed an official political alliance with Octavian (the future Augustus) and Lepidus, known to historians today as the Second Triumvirate.