Cas also recognized Rob and lowered his weapon immediately. While he knew he wasn't allowed to say it, he saw much of Sam in the other man. More than was likely viable given how delicate the situation was, but there was no time to comment on it. "Have you seen Johnny?" he asked. "Or found where Mary is being held?"
He didn't know the other man, but he was assisting a woman who had clearly been tortured. A part of him wished to examine her himself - talk her down, see if he could instill any form of confidence, but he ignored it. Rob's accomplice and Anna had it under control and they needed to get moving.
Examining the younger man's face and turning back briefly to glance at the girl, he frowned. "Where did you find her?" he asked curiously. "Was she able to tell you anything?"