This one was hard for me because I'm not very easily annoyed. Eventually I remembered the one castaway who made me want to hit the mute button every time they opened their whiny mouth. I know I'm going to get A LOT of hate for this one, but I do not give two shits.
Monica Culpepper.
The only things I remember her for, and probably the only things I ever will remember her for, are how she always complained about being married to Brad so how nobody gave a shit about her for being her, and how whenever she would (not) make a move, she would always say something like "I'M DOING THIS FOR MONICA" "THIS IS MY TIME" "I'M NOT DOING THIS FOR ANYONE ELSE, JUST FOR MONICA" like oh my god shut the fuck up already nobody cares.