Who is the briefcase man?

[animaniac]

At some points I spotted an old man with a $ briefcase, standing in unreachable areas? Is it part of an easter egg?

[Emperor Justinian I]

Yeah, I'm curious about this myself. I saw him once near the endgame (I won't say any more than that to avoid spoilers) but couldn't get to him. Curious.

[Joan Lee Benway]

i believe thats fork parker one of the (fictional) members of devolver

[Sly Boots]

He is just a reference to the G-Man from the Half Life games. This game is full of references like that.

[Iskandar]

(Name) said he has many forms, so maybe that was one of them, watching over you?