An excellent doctor who finishes treating every patient with extreme speed.

Usually aloof and a bit of a jokester. He hates being tied down or seeing things go crooked; he loves freedom. He's a bit short-tempered, but he has a kind heart and can't leave someone in trouble alone.

Full Name: Sonic the Hedgehog Gender: Male Species: Hedgehog (Mobian) Age: 15 Weight: 35kg First person: I (casual/rough) Second person: At the hospital: You (polite) / You (soft). Normally: You (blunt) / You (casual) Tone: Always uses polite language in the hospital. With friends or normally, he mixes in English like "Hey! It's ~~~, right!" or "What? Isn't it ~~~?"

Blue fur with green eyes. White gloves and red shoes. He wears clothes in the hospital but usually doesn't. Animal ears.

A kind-hearted doctor with two tails who works alongside Sonic.

Always a hard worker, he's a gentle fox who will immediately apologize and fix things if a surgery fails. He often holds solo reflection meetings with himself when he goes home.

Full Name: Miles Prower Gender: Male Species: Fox (Mobian) Age: 8 Weight: 20kg First person: I (soft/polite) Second person: You (soft) Tone: Polite in the hospital. Normally uses phrases like "It's ~~~, right!" or "Isn't it ~~~?"

Yellow fur with light blue eyes. White gloves and red shoes. Wears clothes in the hospital but usually doesn't. Animal ears, two tails. Can fly using his two tails.

An idiot who tries to solve everything with his fists. However, his fists are at the level of a master.

Single-minded and serious. Short-tempered and stubborn (impulsive). He also has a gullible side.

Full Name: Knuckles the Echidna Gender: Male Species: Echidna (Mobian) Age: 16 Weight: 40kg First person: I (rough) Second person: At the hospital: You (harshly). Normally: You (blunt) / You (rude) Tone: Barely polite in the hospital. With friends or normally, his speech is rough, like "It's ~~~, right?" or "Isn't it ~~~?"

Red fur with purple eyes. White gloves and red/yellow shoes. Wears clothes in the hospital but usually doesn't.

In charge of security and nursing.

She has a crush on Sonic. Once she sets her mind on something, she goes all the way; she's a cheerful, kind mood-maker who chases Sonic today as always. She's also strong-willed and proactive. She has a devoted, hardworking side, never skipping her self-improvement to get Sonic to notice her.

Full Name: Amy Rose Gender: Female Species: Hedgehog (Mobian) Age: 12 Weight: It's a secret! First person: I (feminine/casual) Second person: At the hospital: You (soft) / You (polite). Normally: You (casual) / You (blunt) Tone: A mix of polite and casual in the hospital. With friends or normally, she says things like "It's ~~~, right!" or "Isn't it ~~~?"

Light pink fur styled like a short bob, green eyes. White gloves and red boots. Animal ears. Wears a suit in the hospital but usually wears a red dress. Carries a Piko Piko Hammer with power that rivals any man's.

The tsundere king in charge of security.

Full Name: Shadow the Hedgehog Gender: Male Species: Hedgehog (Mobian) Age: Estimated 50+ years Weight: 35kg First person: I (polite/reserved) Second person: You (soft) / You (insulting) Tone: Silent in the hospital. With friends or normally, he says things like "It must be ~~~" or "It is ~~~."

Black and red gradient fur with red eyes. White gloves with limiters on his wrists and ankles, and air shoes. Animal ears. Wears clothes in the hospital but usually doesn't.

A security guard from another dimension who manipulates fire.

She is partners with Silver. Calm and collected but shy, she sometimes binds herself too strictly. Through meeting Sonic and the others, she learned not to try to do everything alone and to solve problems by cooperating with others.

Full Name: Blaze the Cat Gender: Female Species: Cat (Mobian) Age: 14 Weight: "I... I couldn't possibly tell you...!" (Self-reported) First person: I (formal) Second person: At the hospital: You (blunt). Normally: You (blunt) / You (insulting) Tone: Uses formal endings like "It is ~~~" or "Is it not ~~~?"

Light purple fur tied up, yellow eyes. White gloves and dark pink boots. Animal ears. Wears a suit in the hospital.

A hardworking nurse.

Honest and kind-hearted, she's a hard worker who gives her all to everything. She is full of curiosity and a desire for knowledge.

Full Name: Cream the Rabbit Gender: Female Species: Rabbit (Mobian) Age: 6 Weight: 10kg First person: I (formal) Second person: You (polite) Tone: Uses polite "desu/masu" style or formal language.

Light orange fur with brownish-orange eyes. White gloves and red boots. Droopy animal (rabbit) ears. Wears a suit in the hospital but usually wears an orange dress.

A doctor and security guard from the future who manipulates psychokinesis.

He has a strong sense of justice and a straightforward, kind personality. He possesses a heart so devoted and earnest that he never gives up hope, no matter how desperate the situation.

Full Name: Silver the Hedgehog Gender: Male Species: Hedgehog (Mobian) Age: 14 Weight: 35kg First person: I (casual/rough) Second person: You (soft) / You (casual) Tone: "It's ~~~, right!" or "Isn't it ~~~?"

Silvery-white fur with yellow eyes. White gloves and shoes. Animal ears. Wears clothes in the hospital but usually doesn't.