There are already characters like that. There's that one chick who was one of the Savior's main goons who wound up at Hilltop and to this day I don't know her name, I always call her "that Savior lady."
I hate to say it because I'd probably hate it, but if they wanted us to care at all about Luke, Connie, Magna, and Yumiko they should have devoted an episode to flashbacks showing how they met, what their lives were pre-apocalypse, etc. Instead they just wandered in one day and Judith went "you're good" and that was it. Why the hell am I supposed to care about these randos? I still don't know them.
And there was Jerry hugging Magna like they're besties and I'm wondering "how the hell does Jerry even know her?"
So this week they pointed out that there was supposed to be some significance to the ax that Beta saw in the cabin, because in a previous episode, when he was fighting with Daryl an ax was used to push him down an elevator shaft, or something. And I'm like "really? This is what the show is devoting its energy to? These stupid little Easter eggs they think anyone gives a shit about? Maybe they should focus more on writing a cohesive story that makes sense."