If we're allowed up to three per series
BB1: Nick/Craig/Anna
BB2: Brian/Helen/Paul
BB3: Alex/Jade/Kate
BB4: Jon/Cameron (only because he won
)/Nush
BB5: Nadia/Michelle/Victor
BB6: Makosi/Craig/Science
BB7: Nikki/Aisleyne/Pete
BB8: Charley/Ziggy/Chanelle
BB9: Rex/Mikey/Darnell
BB10: Freddie/Marcus/Noirin
BB11: John James/Josie/Ben or Corin
BB12: Aaron/Jay/Faye
BB13: Deana/Caroline
BB14: Gina/Dexter/Hazel
BB15: Helen/Ashleigh/Two Second Steven
BB16: Marc/Danny/Harry
BB17: Hughie/Jason/Andy
BB18: Chanelle/Ellie/Isabelle
BB19: Lewis F/Cameron/Akeem
Went for the ones I felt were the biggest presences of their series as those would be the ones that would be most remembered. The order they come in as listed is in order of who I'd remember most.