My Mister — Characters & Cast

To protect his family, preserve harmony, and quietly endure life's hardships; later shifts toward claiming true inner peace and emotional authenticity.

At the start, Dong-hoon is an emotionally numb, weary corporate engineer who absorbs constant disrespect and personal betrayal in silence. Through his encounter with Ji-an and confronting his wife’s infidelity, he learns to acknowledge his own pain, voice righteous anger, accept help, and eventually step into authentic executive leadership and self-determination.

Basic daily survival and paying off inherited loans; evolves into fiercely protecting Dong-hoon and striving to become a genuinely good person.

Beginning as an emotionally detached, mistrustful survivor who weaponizes cynicism to navigate crushing debt and trauma, Ji-an slowly softens as she experiences Dong-hoon’s unconditional kindness. She sheds her survivalist armor, embraces communal warmth, seeks legal and moral accountability, and rebuilds herself into an open, thriving professional.

To reclaim his lost dignity before he dies and bring joy to his aging mother.

Having gone bankrupt, separated from his wife, and relegated to cleaning building stairways with his younger brother, Sang-hoon battles feelings of shame. Yet, he retains an expansive, generous spirit, ultimately spending his secret savings to give Ji-an’s grandmother a grand, honorable funeral.

To protect his brothers and find artistic and personal self-acceptance.

A former prodigy film director who fell into obscurity, Ki-hoon masks his fear of failure behind anger and loud outbursts. Through his relationship with actress Choi Yoo-ra—who fears falling into mediocrity—he confronts his creative insecurities and finds peace in humble living.

Finding meaning and connection despite deep romantic loss.

As the proprietor of the neighborhood bar, Jung-hee is the energetic focal point of the community, yet she carries profound personal loneliness following the departure of her lover to a Buddhist monastery. By extending maternal warmth to Ji-an, she finds a path through her grief toward emotional closure.