There are 3 unique codex entries in the Persons of Note section in Kessan's Landing. 2 are accessible to all players regardless of class or faction and 1 is faction specific.
Gizmel Gam is obtained from interacting with the Legate Lounge Entrance during "A Favor or Two" mission.
Codex type: Persons of Note | Faction: Imperial | Class: All
Associated Achievement: None
Petra and Mina Nihrum is obtained from speaking with Petra Nihrum during "The Heat is On" mission.
Codex type: Persons of Note | Faction: Both | Class: All
Associated Achievement: None
Tyrus Brokenblade is obtained from speaking with Tyrus Brokenblade during "Storming the Castle" mission.
Codex type: Persons of Note | Faction: Both | Class: All
Associated Achievement: None