Nothing. Just because someone is different doesn't mean they're a freak. Some people can't help it either.
a computer freak is someone who is madd about the computer
alchemist, witch, herblorist, warlock, druid, freak, cultist, etc
someone who is wierd freak and is a sexaholic
There is only one Cirque Du Freak movie.
a paranoid freak
control freak
a bully and a control freak
The expression 'closet freak' can be defined as someone who seems decent on the outside, but is in the bedroom a freak or sexual extravagant. It's a rare expression.
You are a FREAK
If you freak someone that iz in jail.
a bully and a control freak
Freakshow translates as Monstrositätenschau but you would really use it to describe someone in German. You could say Du bist ein Freak - you're a freak.