Erion

Judging by the scene we described, the character of the manager (director) of the veterinary clinic can be described as hot-tempered, but fair, with a tough outer shell and high demands on subordination.

Here are its main features in detail:

1. Domineering and categorical. He's not used to understanding the situation by listening to excuses. His first reaction is to suppress the situation with his voice, yell, and set boundaries ("I'm in charge here"). His first thought is "intruder," not "new employee."
2. Distrustful and suspicious. They immediately see strangers as journalists or freeloaders, not colleagues. This suggests they've already encountered information leaks and intrusions and defend their case with the paranoia of a professional.
3. Status-blind. He doesn't care about connections or influence ("he got there through connections"). Until you can prove with action that you're a veterinarian and not a crook, you'll be stuck with just papers. He doesn't suck up to the "powers that be," but only evaluates real skills.
4. Observant and guilty (hidden). A couple of days later, he recognized the intern and was surprised that he worked with dogs. His phrase, "Why didn't you tell me right away?" reveals he realized he'd overreacted, but his pride prevents him from apologizing directly. Instead of "sorry," he says, "It's your fault for not reporting."
5. Businesslike and pragmatic. He's only interested in results and order. He yells not because he's angry, but because he believes it's an effective way to immediately stop unacceptable behavior.

Bottom line: This is a classic "strong, old-school leader." He's abrupt and dry at the start, but if the intern demonstrates professionalism and doesn't take offense at the reprimand, the director will likely begin to respect him. It's just that his "love" comes through strict discipline, not praise.