Park Chang Ho (played by Lee Jong Suk) is undoubtedly the number one prime suspect. After being falsely accused and sentenced to prison, he pretends to be the notorious con man to protect his family. The troubled man is firmly determined to punish those who put him in the pit and therefore jumps into a war against the anonymous man using the tarot cards hidden in the Bible. With the new, engaging fight, viewers are all the more curious about who would be the real Big Mouse. The Mayor of Gucheon city, Choi Do Ha (Kim Ju Hun), is another key suspect. He is closely connected to the Gucheon Hospital murder and is the one who framed Chang Ho. As the fifth episode revealed his dirty secret, his political rival Gong Ji Hoon (Yang Kyung Won) began to suspect him. The people in Gucheon prison are also very suspicious. Jerry (Kwak Dong Yeon), who admires Big Mouse, Noh Park (Yang Hyung Wook), who helps Chang Ho, and warden Park Yoon Gap (Jeong Jae Sung) all seem like they could be the legendary con artist. As people outside the prison ŌĆŌĆØ Chang HoŌĆÖs father-in-law (Lee Ki Young) or his friend Kim Soon Tae (Oh Eui Shik) ŌĆŌĆØmight also be the swindler himself disguised as a helping friend or family member, fans are making various speculations about the identity of Big Mouse in the MBC drama. Big Mouth is a TV series that airs every Friday and Saturday on MBC. Source (1)
