Latest Insurgent Casting Calls for Thin Caucasian Blonde Stand-Ins

CL Casting has put out another casting call for Insurgent. This one calls for “Thin, Caucasian Blondes”. I wonder why specifically thin and blonde. Could this be for Tris? Take a look at the casting call below:

CASTING CAUCASIAN BLONDES THAT FIT THE FOLLOWING DESCRIPTIONS to work tomorrow as stand-ins on Mineral:
Female -Caucasian Blonde – 5’3 and 105-110 (FIT!)
Female – Caucasian Blonde – 5’8 and 112 (Thin!)
To submit yourself for review, please email three pictures, height, weight, age, and phone number to CLCStandIns@Gmail.com
Subject – Caucasian Blonde (Enter height)
Please only submit if you are near these weights & you must be the proper heights to submit! (Please list stand-in experience in your email!)

Source: TSCC