When working, Kogami keeps a level head and doesn't let emotions cloud his judgment, no matter what situation he's in. The way he deals with investigations leaves even the best Enforcers impressed and appalled, as he usually uses risky methods to solve them. However, despite his mostly serious personality, Kogami has a sense of humor and finds it amusing to tease rookie Inspector, Akane Tsunemori, especially about how she once shot him with a Dominator.