It can be as unrealistic as you like so can include the likes of Charlie Sheen and can even include dead people if you want like Chyna, Paul Daniels or Bobbi Kristina Brown. They'd just be imagined as they'd be in the series they were rumoured for. Mine probably looks like:
Dog & Beth Chapman
Caitlyn Jenner
The Wealdstone Raider
Jason Gardiner
Charlie Sheen
Kim Woodburn
Lauren Socha
Pamela Anderson
Chyna
Steph & Dom
Tyson Fury
Bobbi Kristina Brown
Meat Loaf
Lord Prescott
Sarah Ferguson
Sir Cliff Richard
Probably the trashiest most controversial line up especially for tibb but yeah
Angie Best, 
Make a line up only out of previously rumoured housemates.
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