The main cast of the South Korean television series "Vincenzo" includes:
- Song Joong-ki as Vincenzo Cassano / Park Joo-hyung, an Italian lawyer and Mafia consigliere of Korean descent
- Jeon Yeo-been as Hong Cha-young, a lawyer and associate at Wusang Law Firm who later becomes CEO of Jipuragi Law Firm
- Ok Taec-yeon as Jang Jun-woo / Jang Han-seok, an intern at Wusang Law Firm and the real chairman of Babel Group
- Kim Yeo-jin as Choi Myung-hee, a former prosecutor turned corporate fixer and attorney for Babel Group
- Kwak Dong-yeon as Jang Han-seo, Jang Jun-woo's half-brother and public face of Babel Group
Supporting cast includes:
- Kim Hyung-mook as Toto, an Italian restaurant owner and former wrestler
- Lee Hang-na as Kwak Hee-soo, a snack bar owner and former boxer
- Kim Seol-jin as Larry Kang, a dance studio owner and former street fighter
- Kim Yoon-hye as Seo Mi-ri, a piano school owner and hacker
- Yang Kyung-won as Lee Chul-wook, a pawnshop owner and self-proclaimed martial artist
- Seo Ye-hwa as Jang Yeon-jin, Lee Chul-wook's wife and former weightlifter
- Jung Ji-yoon as Yang Joo-eun, an accountant who supports Jipuragi Law Firm
Additional notable characters include members of the International Security Intelligence Service, Seoul Southeast District Prosecutors' Office, and the Cassano family, such as Salvatore Alfano as Paolo Cassano, Vincenzo's adoptive brother
. This ensemble cast brings to life the story of Vincenzo, a Korean-Italian Mafia lawyer navigating complex legal and criminal challenges in South Korea
