"I'm not so widely known that I'm going to be pigeonholed"

In this quote, Jeri Ryan is expressing her belief that she is not famous adequate to be typecast or restricted in the functions she can play. Being pigeonholed ways being taken into a narrow category or stereotype, and Ryan is positive that she has not reached a level of popularity where this would be a concern. She may be acknowledging that she is not a family name, however she likewise sees this as an advantage. By not being widely understood, she has the flexibility to check out different types of characters and not be restricted to a particular image.