Fire Emblem: Path of Radiance - Character Unlocks

CH09-Mist-Automatically joins
Rolf-Automatically joins
Marcia-Talk with Ike
CH10-Lethe-Automatically joins
Mordecai-Automatically joins
Volke-allow him to join your team at the start of the Chapter
Nephenee-Talk with Ike
Brom-Talk with Ike
Kieran-Talk with Oscar
CH11-Talk with Mordecai
CH12-Sothe-Allow him to join your team
Jill-Talk with Ike
CH13-Astrid-Talk with Ike
Gatrie-Talk with Astrid
CH14-Makalov-Talk with Marcia
CH15-Stefan-Move either Lethe of MOrdicai to the Varg Katti space
Muarim-Clear the Chapter
Tormod-Clear the Chapter
CH16-Devdon-Talk with Soren
CH18-Reyson-Go to the First Report, complete Chapter 17, and Accept his halp in Chapter 18
Janaff-Automatically joins
Ulki-Automatically joins
Tanith-Automatically joins
Shinon-19, talk with Lofa in Chapter 18, then kill him with Ike my friend could be wrong
CH20-Calill-Go to "Mysterious Girl" report before doing the Chapter
CH21-Tauroneo-Talk with Ike, Mist, or Soren
CH23-Ranulf-Automatically joins finally
Haar-Talk with Jill
CH24-Lucia-Automatically joins
Bastian-Automatically joins
Geoffrey-Must survive Chapter 24, will join on Chapter 25
CH25-Largo-Go to the "Mysterious Man" Report before the Chapter
CH26-Elincia-Automatically joins
CH28-Nasir-Will join automatically if you do not defeat the Black Knight in Chapter 27
CH29-Tibarn, Naesala, and Giffca-Choose all of them during the beginning of the Final Chapter.

Ilyana
On Chapter 8: Despair and Hope, there is a female mage, nine spaces north and two spaces west, named Ilyana.If you talk to her with Ike, she will join your team. She has Elithunder as her attack.

View chapter dialogue
Press Z while someone is talking to see all previously viewed dialogue for that chapter.