There are 7 unique codex entries in the Persons of Note section on Ilum. 1 is accessible to all players regardless of class or faction and 6 are faction specific.
Admiral Shai is obtained from speaking with Admiral Shai during "A New Order" mission.
Codex type: Persons of Note | Faction: Imperial | Class: All
Associated Achievement: None
Darth Arho is obtained from speaking with Darth Arho during "The Jedi Temple" mission.
Codex type: Persons of Note | Faction: Republic | Class: All
Associated Achievement: None
Darth Malgus | Coordinates: 574, -510 | Location: Ilum: Eastern Ice Shelf: Imperial Base Camp
Darth Malgus is obtained from speaking with Grand Moff Regus during "Shoring Up Defenses" mission as an Imperial player or Commander Jiyan Dar during "A Gentleman's Agreement" mission as a Republic player.
Codex type: Persons of Note | Faction: Both | Class: All
Associated Achievement: None
Grand Moff Regus is obtained from speaking with Grand Moff Regus during "First Strike" mission.
Codex type: Persons of Note | Faction: Imperial | Class: All
Associated Achievement: None
Master Jaric Kaedan is obtained from speaking with Master Jaric Kaedan during "First Strike" mission.
Codex type: Persons of Note | Faction: Imperial | Class: All
Associated Achievement: None
Supreme Chancellor Saresh is obtained from speaking with Supreme Commander Rans during "Ilum Under Siege" mission.
Codex type: Persons of Note | Faction: Republic | Class: All
Associated Achievement: None
Supreme Commander Rans is obtained from speaking with Supreme Commander Rans during "Crystal Ball" mission.
Codex type: Persons of Note | Faction: Republic | Class: All
Associated Achievement: None