Original Air Date	February 5, 1999
Guest Stars	Michael Shanks as Ma'Chello Teryl Rothery as Dr. Fraiser Alvin Sanders as Fred Melanie Skehar as Waitress
Directed By	David Warry-Smith
Written By	Tor Alexander Valenza
Synopsis	First off I have to say that Michael Shanks' performance took my breath away, he is such an amazing actor! SG-1 arrives in a room that appears to be unoccupied, finding very advanced technology. They finally discover that there is one lone inhabitant "hiding out", and elderly man named Ma'chello (also played by Michael Shanks.) Teal'c recognizes Ma'chello as being one of the most saught after enemies of the Goa'uld system lords. Ma'chello then tells Daniel to touch an advanced machine that instantaneously switches their personalities. Now back on Earth, Daniel is dying inside of Ma'chello's body and Ma'chello refuses to make the switch back.