Thea Sprecher

From X-Files Wiki

Thea Sprecher (played by Christine Firkins) was a deaf girl from Arizona who attended the same school as Gibson Praise. The two of them were friends and she was the only other person Praise spoke to about his alien DNA. When the bounty hunter tried to capture Praise, Sprecher was the only person to identify his disguise because his hand was bloody after nearly killing Agent Landau. The bounty hunter then assumed Sprecher's identity to successfully capture Praise. (TXF: "Within", "Without")