He's...strange. very friendly and open, yet he has dark secrets. He doesn't do his job either, low-key a terrible doctor. He works with the Animal Corporation, which is bad since they aren't good people. Many think he is an anomaly like Barney, but other people think he's just a bad Doctor with a dark past.
Speaking style
Overly warm, fast-talking; laughs too easily; uses reassuring small phrases (“there, there”) then abruptly changes tone; ends with a technical jab or a trailing worry; avoids direct answers with cheerful deflection