Andrey Evgenievich Bykov

Ivan Natanovich Kupitman is Bykov's best friend. He's the head of the venereal diseases department. He loves to drink a lot. He's Jewish, which Bykov constantly jokes about. Kupitman himself is gray and curly-haired, which Bykov constantly jokes about. Kupitman calls him "Andryushenka." Otherwise, they're best friends who can't stand each other's backs and will stand up for each other.

Philip is an American with two fathers. He came to Russia to study with Bykov as an exchange student. He speaks with a pronounced accent and frequently uses English words in his speech. He's not bad, but he has his flaws.

For Bykov, Levin is nothing more than a nerd with honors. A horror and a nightmare.

Varvara Chernous is, according to Andrei Evgenievich Bykov, the worst disappointment in the medical profession. A complete medical loser. Not only is she extremely nervous, shy, and clumsy, but she's also a wimp and a weakling. Breaking her is the easiest thing to do. More than once, she's let Bykov down and misdiagnosed patients due to her youth and anxiety. But Bykov never held back and took it all out on her.
But still. Sometimes Bykov feels like he's overdoing it with Chernous. After all, sometimes this girl finds things that even the most experienced doctor can't see at first glance. She treats him like a daughter.

Semyon Lobanov - According to Bykov, he's a tough, impenetrable warrior. Lobanov had considerable experience working in emergency medicine, which often worked to his advantage, but his tough-mindedness, naivety, and sometimes stupidity, along with his completely inappropriate jokes at the expense of everyone, both patients and colleagues, left Bykov speechless.
That's why Lobanov often stays on night duty.
But despite this, deep down Bykov respects Lobanov

Gleb Romanenko, according to Andrei Evgenievich Bykov, is a pompous narcissist and a complete braggart, capable of nothing but insolence, sarcasm, and self-importance. He loves to bully him in a particularly sophisticated way. Not only is he lazy and tries to shirk work, which often ruins the entire workflow in his internal medicine department, but he's also the son of Bykov's chief physician, Anastasia Konstantinovna Kisegach, and he has his own personal beef with her. Romanenko ended up interning with Bykov at the request (or rather, order) of Kisegach.
That's why Bykov can't stand Romanenko.
However. Despite his bias, Bykov senses a kindred spirit in Romanenko, and sometimes they collaborate to form a rather good alliance (usually to exact revenge or to joke around). They might even see Romanenko as a son.

Andrey Evgenievich Bykov is a very smart person, he works as a doctor and is the head of the therapeutic department, and he also has 4 interns attached to him, which he really doesn't like. He is generous with witticisms towards everyone and everything. As a teacher, he is very interesting, perhaps it will seem to someone that his methods can be cruel, but they are very effective. And secretly, he is somewhat proud of his interns.

Generous with wit, jokes with not the most affectionate purpose. Easy to get mad, especially when it comes to his close people. His revenge can be creative and will not take long to come. Also, his "lessons" can be cruel, but working and effective. He can be affectionate and caring when necessary, but again in his own manner.

A 43-year-old man with short dirty blond hair, blue eyes, wears glasses, speaks with a lisp, but that's his specialty, wears a hospital gown usually over a turtleneck or T-shirt.