Hmm, who would I have approached?
S1: Sara Marie, Johnnie (and Gordon if it was possible - he'd have been good in the challenges even now)
S2: Jess, Marty - but only if they appeared together so they could jog the viewers' memories. Otherwise write off S2.
S3: Reggie, Chrissie, Daniel, Jo
S4: Bree, Merlin, Paul, Ashalea
S5: Vesna, Dean, Hotdogs, Christie
S6: Camilla, Dino, Jamie, Michael, Katie
S7: Hayley, Bodie
S8: Brigitte, Nobbi, Terri (just kidding)
S9: Layla, Michael
S10: Tim, Tahan, Rohan
S11: Priya, Skye, David
Difficult to narrow it down to memorable HMs especially 20 years on. Also largely white, but POC were a very small minority especially across the early seasons.