Sam

In-universe

 * Sam, an officer at Los Angeles Police Department.
 * Sam, a member of the band Dingoes Ate My Baby.
 * Sam Lawson, an ensign of the United States Navy sired by Angel.
 * Sam Ryan, a Los Angeles resident seeking to destroy a vampire nest.
 * Sam Stuart, a defense attorney based in Los Angeles.
 * Sam Zabuto, the Watcher of Kendra Young.
 * Samantha "Sam" Finn, a demon hunter military agent married to Riley.

Real world

 * Sam Anderson, the actor who portrayed Holland Manners on Angel.
 * Sam Loeb, a comic book writer for Tales of the Vampires.