Marie Avgeropoulos
as Gwendolyn and Octavia Blake
The twin leaders
Bob Morley
as Bellamy (Cowbell) Blake
The protector
Eichen Lachman
as Anya
The friend
Richard Harmon
as John Murphy
The best friend
Ricky Whittle
as Lincoln
The brother
Eliza Taylor
as Clarke Griffin
The blonde
The rest of the characters as their respected selves.
I know Eliza and Bob get a lot of backlash and I understand but I can not see the characters played by anyone else so I will not be recasting them, but I do not support their actions.