[Alf]

There's been a few.

Big John Mac can be a very nasty piece of work (although he's funny with it)
Pete Burns could be very vicious
Julie Goodyear is very nasty.
Heidi & Spencer
Lionel Blair had a nasty streak in him
Kellie Maloney
Frenchie
Perez
Farrah
Gemma Collins is a nasty selfish piece of work
And of course Kim Woodburn