Chrysta Bell played FBI agent Tammy Preston in Twin Peaks: The Return.
Tammy Preston is introduced as a young FBI agent assigned to work with Deputy Director Gordon Cole and Albert Rosenfield. She investigates the mysterious events surrounding Dale Cooper and later becomes involved with the Blue Rose task force, the bureau’s group for unusual cases. Bell’s performance gives Tammy an observant, controlled presence within the revival’s shifting investigation.
The character had previously appeared in written form in The Secret History of Twin Peaks, a 2016 novel by Mark Frost. That book presents Tammy as an investigator compiling a classified dossier, creating a bridge between the earlier series and the 2017 continuation.
Chrysta Bell was already associated with David Lynch as a singer and musical collaborator. She had released music with Lynch before appearing in the revival. Tammy’s role is sometimes mixed up with Diane Evans, another FBI-linked character portrayed by Laura Dern.