We have an Eric with the name Jai Courtney

Jai Courtney (from A Good Day To Die Hard) is cast as Eric, the Dauntless leader.

Variety tells us:
The cast continues to grow for Summit’s “Divergent” as “A Good Day To Die Hard” star Jai Courtney has joined the cast.
Courtney will play Eric who is a leader of the Dauntless faction.
We still don't have our Four yet, but hopefully we won't have to wait much longer because filming is allegedly starting next month.

In case you missed it, we have also found our Caleb, Christina, and Tori, go check them out.