Canderous Ordo:
The battle hardened team member of Knights of the Old Republic, Canderous was a
Mandalorian who fought in the Wars against the Republic. Having survived the conflict,
Canderous moved on to become an enforcer for the crime lord Davik Kang. He joins up
with the player on Taris and after the events of the first game leaves to become
the first Mandalorian leader since the war.
In Sith Lords, Canderous is known as Mandalore the Preserver and joins the Jedi Exile
to help defeat the Sith once again. At the conclusion of the game he continues to
ally the remaining Mandalorian clans and growing their military might in
preparation for Revan's return from the Unknown Regions.
Legion:
Legion is a unique Geth "mobile platform" that Shepard comes across during his/her
search aboard the derelict Reaper in Mass Effect 2. Surprisingly, Legion is anything
but hostile towards the Commander and the rest of the team although Tali and it don't
quite see eye to eye. All that's really known is that Legion seems to be fascinated
with Shepard and after Sovereign's destruction it traveled in Shepard's footsteps -
investigating all the planets and places which were featured in Mass Effect.
The player can actually choose whether or not to keep Legion as a companion - either
bringing it aboard the Normandy and activating it or simply selling it off to
Cerberus.
Tali'Zorah nar Rayya:
Tali hardly needs an introduction, she's one of the most popular and swooned over
characters in both Mass Effect and Mass Effect 2. Hailing from the ever moving
Quarian Migrant Fleet, Tali is first discovered by the player in Mass Effect on
the Citadel. During the first game Tali is more of a teen-trying-to-find-her-way
character, on her Pilgrimage trying to discover something to appease the Quarian
ritual a secure herself a place in her peoples' fleet. In Mass Effect 2 Tali has
obviously become a more important person among her people and despite her obligations
to them she joins up with her old Commander about halfway through the game.
To many Mass Effect fans' enjoyment Tali became one of the four love interests in
the second game....sorry guys, I still don't know how you could choose her over
the always lovely Miranda.
Duncan:
Duncan is a Grey Warden in Dragon Age: Origins and is the first one that the player
comes across - actually being recruited by him in each of the Origin stories. A
father figure to Alistair and a wise man to the player, it's unfortunate that Duncan
meets his end at the beginning of the game alongside King Cailen fighting Darkspawn
in Ostagar. If there's ever been a character I've wanted to see more of it's certainly
Duncan.