Clint will be with Dom and a few others near the center of the blast but will miraculously be okay. He will then team up with her and go be kickass.
Julian will be in the extreme danger zone with Kevin and will get smushed, then trapped. He will be very, very heavily injured. (His parents are rich enough to hire healers, but he'll be out of the action for awhile recouperating.)
Teddy will get seriously injured and filmed for hints of Skrullness to creep out.
Mark is with Santo and will be shielded by his body.