Sam Fisher 山姆·费舍尔

"A guy once said, 'The price of success is hardwork and dedication.'"
― Sam Fisher, sharing words of wisdom with Ghost Leader Anthony "Nomad" Perryman during Operation Watchman.

Samuel Leo "Sam" Fisher is the main protagonist and player character of the Tom Clancy's Splinter Cell series of video games, novels and comic books developed and published by Ubisoft and endorsed by Tom Clancy. Fisher was created by writer JT Petty and designed by character artist Martin Caya. He was initially voiced by veteran actor Michael Ironside in all the Splinter Cell games from the first to Conviction. In Splinter Cell: Blacklist, Eric Johnson provided the voice acting and motion capture for Sam. Michael Ironside later returned as the definitive voice of Sam (as well as providing motion capture performance) in the crossover Tom Clancy's Ghost Recon: Wildlands (Year 2 Season Pass DLC), appearing in "Operation Watchman" in the La Cruz province in Bolivia and Tom Clancy's Ghost Recon: Breakpoint (Year 1 Season Pass DLC: Episode 2 "Deep State") appearing in "Operation Checkmate" in Aurora. Sam later joins Team Rainbow in 2020 where he becomes an official member of the team to combat wordwide threats.

A highly decorated Navy SEAL and former CIA paramilitary ops/clandestine officer, Fisher was once a member of Third Echelon, a top-secret initiative within the National Security Agency (NSA), where he successfully carried out black bag operations as the very first field operative of the initiative's "Splinter Cell" program. In Splinter Cell: Blacklist, Fisher became the commander of a covert unit called Fourth Echelon after he briefly carried out missions for Paladin Nine Security, a PMC headed by his old friend Victor Coste.