multiple episode series, with mystery character, is spoiled in the series overview

In the current example, I decided to see if Rings of Power could be somewhat entertaining. I wanted to know the name of an actor I saw in the first episode.  The IMDB page listed an actor who played one character, but he was assigned to a different character that turned out to be a major plot spoiler. This is a major issue for me and has severely damaged the small amount of enjoyment I might have gotten from this poorly received series. This is really not fair and I feel this needs to be addressed. If a character has a secret identity, then surely this secret identity should not be placed right at the forefront of the overview page? It is growing increasingly difficult to find any basic information in a safe manner these days. IMDB was a last bastion and safest place for me to visit to find out basic information without getting a show/movie ruined. Now it seems this may no longer be the case? I sincerely hope that this is an oversight and can be fixed with a code adjustment. i.e. prioritise the character name from the first episode and do not show different data from later episodes if it is different from the first.