[gniv]

Amazon already does some of this (they identify actors in a scene iirc), so they could "easily" extend it to what you're suggesting.

[esafak]

Xray, they call it. It's a great feature! https://www.amazon.com/salp/xray

[hn_user82179]

I adore X-Ray. It's great for finding songs I like that are played in a video, or figuring out some actor who looks familiar but I can't tell. And of course for remembering character names. I'm honestly so surprised no other streaming services offer a similar feature.