Barry Papazian

Barry Papazian is the main antagonist of the episode Everybody Loves A Clown in season two, as well as being mentioned in season five. He is a Rakshasa who wears clown disguise as he works in the circus, he has responsible for a series of homicide and even a family that he killed that only the child left him alive.

The Real Ghostbusters
Impersonation and mentioned

Personality
Papazian proved to be gentle and utterly harmless that he could help others if he could, and he would often break up fights in the circus. However all this showed if a mask, since he was a homicidal sadistic and psychopath who killing his includes leaving an orphan girl because of him, he takes advantage of his powers and can even be invisible with them to attack his victims.

Appearance
Although Papazian uses a clown appearance to attack his victims, he simply has the appearance of an elderly man who pretends to be blind and harmless so as not to have any suspicion.

Trivia

 * Papazian is the first villain clown to appear in the series as the second is John Wayne Gacy.