The Dobermans like everyone unless given a reason not to. Ripley is overly exuberant when it comes to people (I joke that he's a Lab trapped in a Dobe body sometimes, lol), but he is also observant and is able to pick out the good form the bad. He's nicely alerted me to a few sketchy people this year. Keira's more reserved when it comes to people, but not at all shy. She loves everyone, but saves her real enthusiasm for family and close friends.
And Dance doesn't like many people. It's always a good day when she meets somebody she does like, and it's a miracle if she gets through a day not offended by anyone at all! And there are times where, for whatever reason, she'll just all of a sudden decide some random person is her new best friend. I don't know why or what it is about these people though. And when she does decide she likes you, she really likes you. There is no happy medium for Dance. She either hates you or she loves you, and there is no rhyme nor reason to it.
But back to the original question... no, there aren't any specific people in particular that my people-friendly dogs (the dobermans) don't like that I actually associate myself with. There have just been a few people in public that they've not liked, and for good reason.