People listing all these housemates who just argued and may have been a bit annoying when a man who spat in someone's face and then laughed and patronised him about it exists

the answer is Dennis. A ****ing scummy ****.
Once you've got him out of the way then you can start listing the people you genuinely dislike as housemates, which in my case would be the bores...and where do we start? Ah I know, at Sam ****ing Evans. Pav, Laura BB11, Maysoon and Hira are all up there amongst others who are even more forgettable to be able to name them as some of the worst housemates of all time that should never have been cast.