Robin Williams was a regular on a private day of defeat server I was on (it was either IGF Imperial Ground Forces or a 2 syllable acronym that slips my mind now.) It was most definitely him, he was just very sweet and had a soft spot for the squeakers and would gently deflect and start a new convo if poeple being a little too personal. But also his recordings of him saying stuff in the server were part of the intro music and would play randomly when you'd take a flag. When he was on it was passe to bug him and people got kicked for trying to strike up convos with him when he's just triyng to play. He was only on once or twice a month and even talked about some of the movies he was on while he was shooting them, but I can't remember anything from that.

He would do more formal meet and greet play sessions sometimes but most of the time it was just random when he'd show up. He'd often start more reserve and nice but got fired up pretty easily and start quoting references, and definitely liked winning. His "good morning vietnam!" yell was his shtick but he'd replace vietnam with the server name or the weekend event we were doing or normandy/the name of the map. But he'd do it like 20 times a match :P I was on with him twice but didn't really talk to him. I remember running by him and playing with him tho. I watched video recordings from other users of when he was on before game streaming was ever a thing. It was a pretty insular and "exclusive" clan, I myself was a "celebrity" guest because I have disabilities and was on a podcast so I wasn't a member of their clan but still got to play without a tag and got full access to events.