* The name is spelled incorrectly: Perhaps there's a slight variation in spelling.
* They are a less known figure: They might be involved in smaller projects or haven't achieved mainstream recognition.
* The person is not an actor: It's possible "Sean Poolman" works in another field.
To help me find the right person, please provide any additional information you have, such as:
* Full name: Is it Sean Poolman or a different name altogether?
* Approximate age: This could help narrow down potential results.
* Genre of work: Do you know what kind of movies or TV shows they're in?
With more information, I might be able to find the person you're looking for.