In cartoons and other animated series, the (voice)actor only technically appear if he speaks. But some of the main character may appear throughout the episode without saying anything in that particular episode.
If this were a live action, then we would credit the character because voicing isn't important since the actor does appear.
But what is the case about animated series? Would it be alright to mark certain main character under "cast appearance" for an episode where the character appeared but didn't say anything? I would like to add it because character appears even if its voice-actor (aka cast) does not. What is the rule on this?
Here are some concrete examples... let's say He-Man is unconscious or injured throughout episode and appears in it while his friends try to save his life. But he doesn't speak in that episode. Or, he fights while riding his Battle Cat throughout the episode but his Battle Cat doesn't talk or roar in that particular episode. Would it still be alright to add them under "cast appearance"?
This is tricky because that would qualify them under "character appearance" technically but not under "cast appearance". Of course, if there is a life action show where we have Japanese and English main cast (where JP is main and EN is dubbed) in a live action episode where main cast does not speak we would still have english main cast actor listed but no longer need for dubbed one sine he would neither physically nor by voice appear.
I hope you have some rule about this and this isn't something to just decide on case-by-case basis. Thank you.