Garza said that the actor turned FBI recruit could be used in undercover (UC) operations. It would seem a little hard to carry out if the perpetrators in the sting operation know who he is based on his high profile. If anything at all, he could coach those who are selected to work in a UC capacity. Whether he is a "chameleon", that remains to be seen.
When you see Simone on the video call, you see her moving her head, yet from the back view she's not actually moving. Which could mean that the video call is just a screen recording taken before filming.
When you see Brendon getting ready to jump on the perpetrator, you hear fabric ripping, but the first shot his trousers are fine but in the next shot you see the rip.
The FBI's Los Angeles field office is in Westwood Village, but exterior establishing shots of it are of the LAPD Police Administration Building about 15 miles east in Downtown.
Around the 24 minute mark, while on stakeout in the car, Carter is looking through the wrong end of the binoculars.