Chloe Khan, Marnie Simpson, James Whale and Stephen Bear are at the public's mercy as they face eviction from Celebrity Big Brother.
X Factor reject Khan joined the list of nominees at the last minute, taking Renee Graziano's place on Thursday.
The Mob Wives star had been up for eviction, but during the shopping task she secured a "save and replace" - and picked Khan instead.
Her choice led to a furious row with Bear, who has begun a sexual relationship with Khan in the house.
Earlier, Simpson, Whale and Graziano had been chosen to face the public vote during so-called "killer nominations", delivered face-to-face in Wednesday night's episode.
Bear will face the public vote every week because he has an eternal nomination.
During Thursday's episode, the treatment of Heavy D by Celebrity Big Brother contestants Bear and Lewis Bloor left some viewers concerned about bullying.
In Big Brother's Big Risk shopping task, Storage Hunters star Heavy D was chosen to survive on "slops" for a day.
But Bear and Bloor goaded him into breaking the rules by eating a slice of cake.
The two said to him: "Having a bit of cake, mate," and pleaded: "Mate, come on, it's only a little bit. I'm sure it won't be that bad."
But despite him telling them: "No, I can't ... I can't do it," Ex On The Beach's Bear tried to feed him the food by saying "here comes the aeroplane".
Bear then persuaded his fellow housemate to eat after telling him: "Come on. You're Heavy D, mate. Heavy D would eat it."
Former Strictly Come Dancing professional James Jordan commented on Twitter that it was "very uncomfortable to watch how Bear and Lewis treat Heavy D".
@Aisleyne1 wrote: "I'm SO uncomfortable with how Bear & Lewis treat @HeavyHeavyd", while @RogerSmith0909 demanded: "@bbuk Get bullies Bear & Lewis out!! So many people agree yet nothing is being done to stop their behaviour, especially towards Heavy D #cbb."
"Find it really disgusting to watch Bear and Chloe and also how that clique bully Heavy D and the rest of the house," wrote @KateShorten.
Twitter user @WellMax81 added: "Heavy D doesn't realise that he's being bullied - Bear and Lewis taking the piss for their amusement. Disgusted no one has noticed."