Alternate versions Frakes appeared in dual roles in "Second Chances", a TNG episode where it was established that a duplicate of him was created years earlier by a transporter malfunction. Frakes appeared as the duplicate, Thomas Riker, in the Star Trek: Deep Space Nine episode "Defiant", where Thomas impersonates William in order to commandeer the on behalf of the Maquis.
Alternate versions Frakes appeared in dual roles in "Second Chances", a TNG episode where it was established that a duplicate of him was created years earlier by a transporter malfunction. Frakes appeared as the duplicate, Thomas Riker, in the Star Trek: Deep Space Nine episode "Defiant", where Thomas impersonates William in order to commandeer the on behalf of the Maquis.