Yes, "It's Okay Not To Be Okay" features several significant supporting characters who play important roles in the story. These characters contribute to the depth and complexity of the narrative. Some of the notable supporting characters include:
Moon Sang-tae (played by Oh Jung-se): Moon Sang-tae is Moon Gang-tae's older brother, and he is on the autism spectrum. His character is central to the series as his unique perspective and artistic talent play a significant role in the story. Sang-tae's journey towards self-discovery and healing is a key element of the drama.
Nam Joo-ri (played by Park Gyu-young): Nam Joo-ri is a nurse and colleague of Gang-tae at the psychiatric hospital. She forms a close friendship with Gang-tae and provides emotional support to him. Her character adds warmth and humor to the series.
Lee Sang-in (played by Kim Joo-hun): Lee Sang-in is Ko Moon-young's publisher and agent. He has a complicated relationship with Moon-young, and his character brings elements of the publishing world into the story.
Ju-ri's Mother (Head Nurse) (played by Kim Mi-kyung): The head nurse at the psychiatric hospital is a stern but caring figure who plays a significant role in the lives of the characters, especially Sang-tae and the patients.
Kang Soon-deok (played by Seo Joon): Kang Soon-deok is the chef at the OK Psychiatric Hospital. She is known for her delicious food and becomes a comforting presence for the characters.
Ko Dae-whan and Ko Dae-hee (played by Lee Eol and Jang Young-nam): These characters are Ko Moon-young's estranged parents. Their complex family history and their impact on Moon-young's life are explored as the series progresses.