Which rogue Spartan was hired by Carthage?

Xanthippus was a Spartan general who is known for his role in the First Punic War, particularly for his involvement in the Battle of Lilybaeum. His expertise in military tactics and experience in warfare made him a valuable asset to the Carthaginian forces during a critical time in their struggle against Rome.

Having previously served as a Spartan commander, Xanthippus brought his knowledge of hoplite warfare to the Carthaginian army, significantly enhancing their capabilities on the battlefield. His leadership was pivotal in securing a victory against the Romans, illustrating the effectiveness of a seasoned Spartan general when integrated into a foreign military context.

In contrast, the other individuals mentioned, such as Myrtilus, who was associated with different mythological narratives and themes primarily in ancient Greek history, Regulus, a Roman general known for his campaigns against Carthage, and Flamininus, a prominent Roman politician and general who helped lead military operations against the Macedonians, do not fit the context of being rogue Spartans hired by Carthage. Thus, Xanthippus stands out as the only figure linked directly to this specific scenario.