Pong (played by Witaya Wasukraipaisarn) is a protagonist in Colic.
The young protagonist who possesses the supernatural ability to see ghosts, serving as the central figure whose visions drive the horror narrative. Prae (played by Pympan Chalayanacupt) is a protagonist in Colic.
A supporting character who interacts with the protagonist, likely serving as a friend or neighbor drawn into the family's haunting. Jean (played by Kulthida Sattabongkoch) appears in Colic.
A supporting character who serves as a neighbor or friend, providing additional perspective on the family's supernatural crisis. Pong's Mother (played by Sonthannee Suttabongoch) appears in Colic.
A central family member who must navigate the psychological strain of her son's abilities and the escalating haunting within their home. Pong's Father (played by Kitsana Sathathmrong) appears in Colic.
A central family member who attempts to maintain stability while confronting the terrifying supernatural phenomena affecting his child and home. Baby Pan (played by Nathchanon Wasutinuch) appears in Colic.
The ghostly infant central to the film's horror, representing unresolved trauma and the supernatural haunting that only Pong can perceive.