Who are the Characters in Mass Effect 3?

Answer 1

NOTE: This will be updated consistently to keep up with sources from the Mass Effect Wiki.

They haven't fully announced it yet, but the following characters are confirmed to appear in the game:

1.) Commander Shepard

2.) Ashley Williams/Kaidan Alenko (Depends on who survived Virmire in ME1)

3.) Garrus Vakarian (Depends on if he survived the Suicide Mission in ME2)

4.) Liara T'Soni

5.) James Vega

6.) David Anderson

7.) Donnel Udina

8.) EDI

9.) The Illusive Man

10.) Jeff "Joker" Moreau

11.) Legion (Depends on if it survived the Suicide Mission in ME2)

12.) Mordin Solus (Depends on if he survived the Suicide Mission in ME2)

13.) Urdnot Wrex (Depends on if he was killed on Virmire in ME1)

14.) Tali'Zorah (Depends on if she survived the Suicide Mission in ME2)

15.) Jack (Depends on if she survived the Suicide Mission in ME2)

16.) Kai Leng

17.) Zaeed Massani (Depends on if he survived the Suicide Mission in ME2)

18.) Thane Krios (Depends on if he survived the Suicide Mission in ME2)

19.) Miranda Lawson (Depends on if she survived the Suicide Mission in ME2)

20.) Jacob Taylor (Depends on if he survived the Suicide Mission in ME2)

21.) Conrad Verner (Depends on if he didn't get himself killed in ME1 and ME2)

22.) Kasumi Goto (Depends on if she survived the Suicide Mission in ME2)

23.) Samara (Depends on if she survived the Suicide Mission in ME2)

24.) Captain Kirrahe (Depends on if he was killed on Virmire in ME1)

25.) Kelly Chambers (Depends on if she was rescued from the Collector Base in ME2)