Susan Blackmore.
documentedpersonStargate / Remote Viewing
A trained experimental parapsychologist who ran psi studies for years, got null results, and became one of the field's best-known skeptics.
The insider defector: she rebuts the psi-inhibitory-experimenter excuse by noting she got nulls while still a believer. Her 1987 Sargent-lab fraud allegation is alleged (never adjudicated as proven).