|Main affiliation:||Water Street Gang|
|Voiced by:||Conan Lee|
Calvin is a member of the Water Street Gang.
He is a favor character who is seen with Winston at the Golden Koi when Jackie brings Wei Shen to Winston. Calvin is seen as a favor character in many missions where he attacks citizens and officers and Wei is asked to be his get away driver in each of them. Calvin's missions are humorous, such as in "Cop Pursuit" he claims a cop has been sleeping with his girlfriend and knocks him out, asking Wei to drive away from the police. During the chase he admits the woman the cop has been sleeping with was not Calvin's girlfriend, but rather just a girl he likes.
Calvin was later kidnapped by a serial killer. The murderer had previously killed Vincent along with two other Triad members, harvested their organs, and then left the bodies under the Aberdeen Bridge. Calvin was put in the trunk of the serial killer's car, apparently about to suffer a similar fate. However, with the help of Inspector Jane Teng, Wei was able to locate the car, and apprehend the serial killer. Wei keeps Calvin in the trunk, to protect his identity as an undercover officer and tells Teng to send someone to release Calvin from the trunk.