A central figure in the play, Socrates is depicted as the head of the Thinkery, a place where unconventional and questionable teachings are offered. His character offers a fictional, exaggerated take on the historical Socrates.

Pheidippides is the son of Strepsiades, known for his extravagant love of horses, which strains their family's finances. Under pressure from his father, he reluctantly becomes a pupil at the Thinkery.

The Chorus consists of Clouds, who serve as figures of guidance and reflection throughout the play. They embody the presence and influence of the traditional gods within the narrative.

A personified Argument representing traditional values and ethics, Right stands in stark contrast to Wrong during their debate. He symbolizes adherence to the customs and virtues of Athens’ past.

Another personified Argument, Wrong embodies the new, morally flexible teachings of the Thinkery. His debate with Right showcases the rhetorical prowess that challenges conventional beliefs.

A younger creditor of Strepsiades, who becomes frustrated with his inability to recover the money owed to him. He is characterized by his exaggerated manner of expression influenced by Attic Tragedy conventions.