It's Okay to Not Be Okay Season 1 Characters & Cast — No Spoilers

Every character in It's Okay to Not Be Okay season 1 with photos and the actors who play them, including Kim Soo-hyun, Seo Yea-ji, Oh Jung-se — spoiler-free, nothing from later seasons.

• Moon Gang-tae — played by Kim Soo-hyun
• Ko Moon-young — played by Seo Yea-ji
• Moon Sang-tae — played by Oh Jung-se
• Nam Joo-ri — played by Park Gyu-young
• Lee Sang-in — played by Kim Ju-hun
• Park Haeng-ja — played by Jang Young-nam
• Jo Jae-soo — played by Kang Ki-doong
• Oh Ji-wang — played by Kim Chang-wan
• Yoo Seung-jae — played by Park Jin-joo
• Sun-byeol — played by Jang Gyu-ri
• Kang Soon-duk — played by Kim Mi-kyeong
• Ko Dae-hwan — played by Lee Eol
• Kan Pil-wong — played by Kim Ki-cheon
• Young Moon Sang-tae — played by Lee Kyu-sung
• Oh Cha-yong — played by Choi Woo-sung
• Joo Jung-tae — played by Jeong Jae-kwang
• Lee A-reum — played by Chi Hae-won
• Yoo Sun-hae — played by Joo In-young
• Kang Eun-ja — played by Bae Hae-seon
• Young Ko Moon-young — played by Kim Su-in

All seasons of It's Okay to Not Be Okay: full spoiler-free character guide