The first season follows FBI Investigator Dr. Will Graham (Hugh Dancy), and Dr. Hannibal Lecter (Mads Mikkelsen), as the FBI investigate the missing of several girls in Minnesota. The season premiered in the US on NBC in April 2013.
The following weapons appear in Season 1 of the series Hannibal:
Will Graham (Hugh Dancy) carries a SIG-Sauer P226 as his sidearm in the series after he gets his field approval back in "Apéritif" (S01E01). BAU Special Agent-in-Charge Jack Crawford (Laurence Fishburne) also carries a SIG-Sauer P226 as his sidearm in the series, altough he is more often seen wielding his shotgun. Hannibal Lecter (Mads Mikkelsen) also handles Grahams' P226 in "Rôti" (S01E011) as he takes the pistol away from a feverish Graham for his own good. FBI HRT officers also use P226 pistols as their sidearms in the series.
Glock 17
Several police officers use Glock 17 pistols throughout the series. BAU Special Agent Brian Zeller (Aaron Abrams) carries a Glock 17 as his sidearm in the series. Dr. Abel Gideon (Eddie Izzard) takes a Glock 17 from a police officer in "Rôti" and uses it in the episode. Will Graham (Hugh Dancy) also uses a Glock 17 in "Savoureux" (S01E13).
Glock 26
Special Agent Beverly Katz (Hettienne Park) carries a Glock 26 as her sidearm during the first season.
Beretta 92FS Inox
Will Graham (Hugh Dancy) uses a Beretta 92FS Inox in "Apéritif" (S01E01) as he recreates a crime scene in his mind.
Beretta Px4 Storm
Dr. Eldon Stammets (Aidan Devine) uses a Beretta Px4 Storm in "Amuse-Bouche" (S01E02). A woman, credited only as Kidnapper (Molly Shannon), uses a two-tone Px4 in "Œuf" (S01E04). One of his "sons", or "Lost Boys" also uses a black Px4 Storm in "Œuf" (S01E04).
Beretta 84FS "Cheetah"
A once kidnapped child uses a Beretta 84FS "Cheetah" in "Œuf" (S01E04) to kill his previous family. Special Agent Katz also handles the gun after he takes it away from him. Will Graham (Hugh Dancy) also uses one during the re-enactment of the crime in his mind.
Walther PPK
BAU Special Agent-in-Charge Jack Crawford (Laurence Fishburne) uses a Walther PPK in "Savoureux" (S01E13), instead of his usual P226.
Shotguns
Remington 870
BAU Special Agent-in-Charge Jack Crawford (Laurence Fishburne) ususally carries a Remington 870 with black synthetic furniture during raids.
Submachine guns
MP5A3
Several FBI HRT officers carry Heckler & Koch MP5A3s as their primary firearms throughout the season.
Rifles
Colt Model 933
FBI HRT officers usually carry Colt Model 933s fitted with EOTech sights and vertical foregrips while conducting raids throughout the series.
M4A1
FBI HRT officers sometimes carry M4A1 Carbines during raids and missions.