A successful comedian with a large social media following who becomes Yumi's mentor through a comedy camp, offering guidance and support based on her own career challenges.

Yumi’s 20-year-old sister and a medical school prodigy with a genius IQ, who grapples with the pressures of meeting family expectations while longing for personal fulfillment.

Yumi’s hardworking father who runs Chung’s Barbecue, facing business challenges while harboring dreams of performing and supporting his family’s happiness.

Yumi’s mother with a strong emphasis on prestige and security, who works hard alongside her husband and eventually grows to understand her daughter's comedic aspirations.

Yumi’s demanding hagwon instructor who, despite her stern approach, delivers a crucial lesson about pursuing excellence and personal satisfaction.

Yumi’s best friend, a fellow Korean American hagwon student, who values tradition but also stands by her ethical beliefs, such as her commitment to veganism.

A supportive friend Yumi meets at comedy camp, who shares her love for comics and remains loyal despite uncovering Yumi’s secret deception.

Another friend from comedy camp with seemingly neglectful, Hollywood-connected parents, who values her friendship with Yumi despite misunderstandings.

The loyal cook at Chung’s Barbecue who encourages Yumi’s comedic ambitions, providing her with an appreciative audience and steadfast support.