Elizabeth "Lizzy" Griffiths is a human child whom Tinker Bell met while staying on the Mainland. The daughter of Dr. Martin Griffiths, a scientist whose work left him little time for Lizzy, she had been fascinated with fairies since a very young age and drew many pictures of them.
She built a "fairy house" in Tinker Bell and the Great Fairy Rescue, which she left in her garden for any fairies who might come by to use, which she later found Tinker Bell trapped inside. After taking Tinker Bell to her room trapped inside the fairy house, her cat Mr. Twitches attempted to catch Tinker Bell as soon as Lizzy had let her out of the fairy house. Then she locked Tinker Bell in a metal birdcage to keep her safe from Mr. Twitches, and let her out again after putting him outside. Tinker Bell told her all about the fairies, which Lizzy wrote about and illustrated in the field journal her father had given her. When her father found out about fairies and tried to take a captured Vidia to other scientists, she helped Tinker Bell and the other fairies rescue her. At the end her and her father became closer.
- Disney Fairies: Tinker Bell and the Great Fairy Rescue
- A trailer for Tinker Bell and the Great Fairy Rescue portrayed Lizzie's character quite differently: Lizzie was shown trapping and carrying Tinker Bell around in a jar (much like the one Vidia was later captured in) and declaring that "every museum in the world will want one!"
- She is mentioned by Tinker Bell to Periwinkle in Secret of the Wings.