The King of Navarre is a monarch who seeks lasting fame by turning his court into a strict academic environment. He leads his lords in swearing an ascetic oath that forbids interaction with women and restricts basic comforts. His idealistic plans face immediate logistical challenges when a diplomatic mission arrives from France. He struggles to reconcile his high-minded intellectual ambitions with his developing romantic desires.

Berowne is a highly educated and vocal lord in the court of Navarre. He signs the King's restrictive oath under protest, correctly identifying the impossibility of maintaining such a vow. He relies heavily on his verbal skill, often using language to argue against the very concept of strict academic study. He holds a cynical view of romance but finds himself dealing with unexpected feelings.

The Princess of France is a visiting royal leading a diplomatic mission regarding the territory of Aquitaine. She possesses strong leadership skills and a sharp sense of humor. Because of the King's new decree, she is forced to camp in a field rather than stay inside the court. She treats this lack of hospitality with amusement and actively guides her attendants through the ensuing social games.

Rosaline is an attendant lady to the Princess of France. She is highly capable in verbal sparring and frequently uses wordplay to defend herself or tease others. She shares a previous acquaintance with Berowne and holds a skeptical view of his romantic declarations. She prefers to test the sincerity of her admirers rather than accept their flattery at face value.

Dumaine is a lord in the King's court who enthusiastically signs the oath of study. He views academic pursuit as a noble endeavor but quickly becomes infatuated with Katherine upon the French arrival. He attempts to express his feelings through poetry, utilizing a simpler, almost childlike rhyme scheme compared to the other lords.

Longaville is a lord in the King's court who fully supports the ascetic lifestyle proposed by Navarre. He believes that giving up physical comforts will elevate his intellectual status. He finds himself drawn to Maria and attempts to use poetry to rationalize his broken promises.

Maria is an attendant lady to the Princess of France. She possesses a sharp wit and engages readily in the verbal games played by the court. Having met Longaville previously, she recognizes his qualities but remains critical of his lengthy, overly formal attempts at courtship.

Katherine is an attendant to the Princess of France. She clearly remembers Dumaine from an earlier meeting and is aware of his interest in her. She firmly but politely manages the advances of the men around her, using teasing language to maintain her boundaries.

Boyet is an attendant courtier to the Princess of France. He acts as an intermediary, delivering messages to the King of Navarre and gathering information about the lords' intentions. He frequently engages in competitive, innuendo-laden banter with the ladies, acting as an ally in their social maneuvers.

Costard is a country youth who provides a grounded contrast to the elevated language of the court. He is punished for talking to Jaquenetta but maintains a straightforward, unapologetic attitude about his natural desires. He acts as a messenger for the noblemen, inadvertently causing comedic confusion by mixing up his deliveries.

Armado is a flamboyant Spanish visitor residing at the court of Navarre. He views himself as a deeply noble figure and uses unnecessarily complex language to project an image of sophistication. Despite agreeing to the King's oath of study, he immediately falls for a local country maid, mirroring the behavior of the noble lords.

Jaquenetta is a local country maid whose presence disrupts the strict rules of the court. She is ordered to be confined to a lodge in the park as punishment. She accepts her circumstances calmly and is the subject of intense romantic attention from men of varying social statuses.

Dull is the local constable tasked with enforcing the King's new laws. He performs his duties steadily but struggles to comprehend the highly educated language used by the lords and scholars around him. He frequently sits in silence during academic conversations, missing the complexities of the banter.

Mote is a young boy who serves as Armado's attendant. He is highly observant and possesses a sharp grasp of language. He frequently uses his wit to subtly insult or tease his master, relying on Armado's self-absorption to avoid punishment.

Holofernes is a local schoolmaster who takes immense pride in his formal education. He constantly drops Latin phrases into his speech and critiques the pronunciation of others. He views himself as the intellectual superior of the community, prioritizing his display of vocabulary over clear communication.

Nathaniel is a local curate who deeply admires the schoolmaster Holofernes. He frequently praises the schoolmaster's intellect and attempts to replicate his scholarly, Latin-heavy speech. However, his own educational background is less secure, leading him to make errors that Holofernes swiftly corrects.