After doing these prerequisites, don't forget to read the new mail in the Terminal to unlock the characters.
| Unlockable: | How to unlock: |
| Cecily Fairchild | Finish Seabook Arno's story missions |
| Dozle Zabi | Accept invitation to join Zeon and clear the missions given |
| Four Murasame | Finish Kamille Bidan's story missions and read the new mail to unlock Four's friendship mission; clear it |
| Glemy Toto | Agree to help Glemy establish his own faction while joining Axis, and clear the mission given |
| Gym Ghingnham | After joining Dianna Counter, have at least normal relations with Gym and he will send a mail; read and clear the mission given |
| Gyunei Guss | Play as Quess Paraya, and read Gyunei's mail to unlock his friendship mission; clear it |
| Hayato Kobayashi | Have good relations with Hayato and clear his friendship mission |
| Kai Shiden | Have good relations with Kai and then clear his friendship mission |
| Katejina Loos | Have good relations with Katejina and read her mail to unlock her friendship missions; V2 Gundam license is required to clear them |
| Lacus Clyne | Clear Kira Yamato & Athrun Zala's story missions, and read Lacus' mail in Kira's terminall; clear the mission given |
| Lunamaria Hawke | Clear Shinn Asuka's story mission and read Lunamaria's mail; Zaku II CA license is required to clear the mission |
| M'Quve | Read a request mail from Kycillia while joining Zeon and clear the mission given |
| Quess Paraya | Play as a non-Newtype, build up relation with Quess until you receive mail from her, then make the character a Newtype |
| Ramba Ral | Read a request mail from Dozle while joining Zeon and clear the mission given; also need to befriend Ramba Ral first |
| Reccoa Londe | Play as Yazan Gable and shoot down Reccoa in any mission |
| Rosamia Badam | Have best relations with Kamille after joining AEUG, then read his mail and clear the mission given |
| Sarah Zabiarov | Have good relations with Sarah and Scirocco, bad relations with Reccoa, then read Sarah's mail and clear the mission given |
| Sleggar Law | Play as a female character, have good relations with Sleggar, and then read his mail to unlock his friendship mission; clear it |
| Yazan Gable | Have good relations with Yazan after joining Titans, read his mail and clear the test mission given |
