Both characters are accepted.

Spoiler:
BARD'S COLLEGE
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COLLEGE OF WINTERHOLD
Vahlok Charoa [grad] (played by Saraibre Ryu)
Shadza "Dusky" Gloomshade (played by Dragotech)

COMPANIONS
Vorgu Soul (played by XaiakuX)
Gorvesh HammerFist (played by Dragotech)

COVEN OF NAMIRA
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DARK BROTHERHOOD
Eclipse (played by The Operator)
Agana (played by SpinelWolf)

IMPERIAL LEGION
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NIGHTINGALES
Eclipse (played by The Operator)
Karliah (played by The Operator)
Vorgu Soul (played by XaiakuX)

STORMCLOAKS
Uriel (played by dragonmaster715)

THIEVES GUILD
Eclipse [ex] (played by The Operator)
Karliah [ex] (played by The Operator)
Menora the True Shot (played by SpinelWolf)
Katherine (played by dragonmaster715)
Vorgu Soul (played by XaiakuX)
Blackthorne (played by Dragotech)

TRIBAL ORCS
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