|Full name||Mario Mew|
|Family||Vince Mew (adoptive brother)
Unnamed adoptive mother Unnamed adoptive father
|Affiliation(s)||Mario's Tailor Shop|
|Appears in||Patriot City|
|First appeared||Case #13 Greed is Death|
Mario is a 24-year-old tailor and the brother of the victim. He has green eyes and short black hair. He wears a white collared shirt with a red and yellow striped tie under a dark blue blazer. He sports a brown fedora. It is known that Mario uses mouth wash, is a sharpshooter and is a Capricorn.
In the end, it was proven that Mario was Vince's killer. Upon admitting the murder, Mario revealed that Vince tried to make him a spy. After Mario graduated college, Vince asked him to take him to work. When they stopped at Vince's destination, Vince told him to join him as a spy. Mario ignored him and drove back to his home. After remembering his brother being a spy, he confronted him about quitting his job and work as his partner at his tailor shop. While Mario confronted Vince, Vince was disgusted and being a spy will help him grow his stealth mode. Angry by his opinion, Mario waited for Vince to leave the bank and shot him outside the bank. Judge Peterson sentenced him to 10 years in prison.