DBH Fandom is an android and has dark coffee brown, almost black hair and a streak of white hair can sometimes be seen. Their skin is pale with freckles that only appear after long exposure (minimum is 1 hour) under sunlight.
They don a suit similar to Connor's (RK-800), but instead of RK-800 being on the suit it says BH-900. Their tie is a dark navyish blue and they have a white undershirt, as well as a pair of dark grey pants and black shoes that are similar to Markus'.
DBH is very observant and will state details others haven't picked up on. They examine the environment they're in and then immediately get to work on whatever they're doing, like a cop (or like Connor).