Given the task definition and input, reply with output. Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title

While looking for various actors and actresses I keep coming across material they have done that isn't on their IMDB profile.   An example is Allison Scagliotti is in a web short yet there is no mention of it on her page, the web short did give her credit but this isn't always the case. I've noticed that music videos and web videos don't normally show up on IMDB as well as sometimes older roles that the actor/actress doesn't acknowledge.   Since IMDB is generally the go to for if an actor/actresses was in something. If it's not listed on IMDB or their wiki page (and in some cases I've come across not the actor/actresses own personal page) then how can I make sure if the actor/actress is the one I believe they are?

How to correctly identify an actor/actresses is in something that is not listed on their IMDB profile?