* The name is misspelled. There might be a similar name, or you may have made a typo.
* The person is not well-known. Many actors and actresses work in smaller roles or projects that don't gain wide recognition.
* The person has chosen to keep their professional activities private.
To help me find the correct information, could you provide any additional details about Marielle Shaker, such as:
* The type of project they work in (film, television, theatre)
* Their approximate age or career length
* Any other notable details about their career or work
Once you give me more details, I can try to find information about them more effectively.