(written from a Production point of view)
Cheryl Eckelberry is an actress who appeared as a background actress in two episodes of Star Trek: Voyager. She received no credit for her appearances but was identified by the call sheets of the episodes and the name tag of her costume from "Favorite Son" which was sold off on the It's A Wrap! sale and auction on eBay.  The call sheets for "Relativity" also list her as "Cheryl Eikenberry".
She worked as stand-in for Charlize Theron on the drama Mighty Joe Young (1998, with Geoffrey Blake, Richard Riehle, Lawrence Pressman, Tracey Walter, Richard McGonagle, Lily Mariye, Scarlett Pomers, Lynn Salvatori, and Nancy Thurston), where she was misspelled as Cheryl Eckelberg in the end credits.