Who/what does Dominic disapprove of?

Listening in the car with my boyfriend, trying to give him a summary of some long-running jokes e.g. Polish-Lithuanian Commonwealth, Clapham High Street, the terrible faux-pas of wearing the wrong shoes to a sporting event. I mentioned some “friends of the show”, but completely drew a blank on the list of people Dominic disapproves of! Can anyone help me out?

So far I’ve got (I think) Meghan Markle, and John Lennon. But surely there’s been others that aren’t drawn from recent(ish) pop culture?