Something that non-cinephiles don’t know about movies and TV: In most films and shows, especially if they have any actors with recognizable names in them, if the actor’s face is not actually in the shot there is a very good chance the actor “in” the scene was not on set when it was filmed.
The reason is that “named” actors are very expensive, and the more you can avoid having them work the less costly the production — and often, the less hassle.
So if you see the “actor’s” hand? Likely not them. The back of their head? Likely not them. Hear them talking but don’t actually see them? Probably dubbed in later.
If you don’t actually see an up-close shot of the actor’s face in a scene, there is a really good chance they were not present at all when the scene was filmed.