I mean I pretty much know at least 1 in every matchup (either seeing their season or at least knowing who they are IRL) so I'm going to vote in at least this round:
1. CBB15 Katie Price
2. CBB17 Tiffany Pollard
3. CBB14 David McIntosh
4. CBB4 Michael Barrymore
5. CBB8 Jedward
6. CBB7 Alex Reid
7. CBB7 Heidi Fleiss default
8. CBB9 Shannon Twins I guess
9. CBB20 Trisha Paytas
10. CBB17 Angie Bowie
11. CBB5 Cleo Rocos default
12. CBB21 Amanda Barrie
13. CBB16 James Hill
14. CBB21 Daniel O'Reilly
15. CBB20 Sandi Bogle
16. CBB8 Lucien Laviscount I guess
17. CBB10 The Situation
18. CBB10 Prince Lorenzo maybe a mistake default pick
19. CBB20 Marissa Jade
20. CBB18 Katie Waissel
21. CBB16 Chloe-Jasmine Whichello
22. CBB13 Evander Holyfield
23. CBB5 Shilpa Shetty
24. CBB17 Darren Day
25. CBB12 Louie Spence
26. CBB10 Jasmine Lennard
I gotta watch CBB10 for Jasmine & The Situation
27. CBB19 Stacy Francis
28. CBB17 Jonathan Cheban sure
29. CBB17 Megan McKenna
30. CBB10 Ashley McKenzie
31. CBB6 Ben Adams I guess
32. CBB17 David Gest