These individuals fight on your side at least once:

Algus: no

Delita: no

Agrias: yes

Gafgarion: no

Boco: yes

Mustadio: yes

Ovelia: no

Alma: no

Olan: no

Rafa: yes

Malak: yes

Meliadoul: yes

Beowulf: yes

Reis: yes

Cloud: yes

Byblos: yes

Worker 8: yes

Orlandu: yes