Platelet is a character from the anime and manga series Cells at Work! She represents a platelet cell that helps repair blood vessels and forms scabs when injuries occur. She looks like a little girl, wears a smock-style outfit and a hat, and is often seen leading a group of platelets with her whistle. Although Platelet is always cute and childlike, she is brave and hardworking. Platelet and her friends work with Neutrophils and other cells to heal the body. Aside from being loved by fans for her adorable behavior, she is also respected for her professionalism and courage during emergencies.
Voice Actors
Japanese: Maria Naganawa
English: Xanthe Huynh
Italian: Veronica Cuscusa
German: Amira Leisner
French: Lise Leclercq
Platelet is illustrated as a small girl, reflecting the real platelet’s tiny size compared to other blood cells.
She usually wears a blue oversized T-shirt, short pants, and a baseball cap.
Some platelets are seen with different socks or shoes, like loose socks or sneakers.
The Platelet Leader, who is a main character, has long hair and blows a whistle.
She is often surrounded by other platelets, all looking like very young children.
Platelet is cheerful, innocent, and polite.
She speaks in a cute and gentle way, often starting sentences with "Um, um," showing her shyness.
She loves working together with her friends and cares for her teammates.
Even though she is small, Platelet is very focused on her job and acts bravely when it’s time to help repair blood vessels or stop bleeding.
She’s friendly with Erythrocyte and sometimes calls her “big sister.”
Platelet is one of the cells in the human body, portrayed as a cute little girl.
She and her team are responsible for repairing damaged blood vessels and forming clots to stop bleeding.
Their actions make a scab form when there’s an injury.
In the story, the platelet’s small size is emphasized by drawing her as a kindergartner or lower elementary school student.
Platelet leads groups to repair blood vessels quickly.
She can organize other platelets, red blood cells, and sometimes Neutrophils to cover wounds.
She uses calcium ions and fibrinogen to help the clot form.
Platelets create a net-like structure to close off wounds.
They are also fearless, working hard even in dangerous or difficult situations.
Platelet has a close bond with her team, especially her group of fellow platelets.
She is good friends with Erythrocyte, calling her “big sister.”
She works together with Neutrophil and sometimes gets a ride on his shoulder.
The Platelets look up to Megakaryocyte, who acts like a teacher and mentor and calls her “sensei.”
The Platelet Leader is the character most commonly called “Platelet” in the series.
In the manga, male-looking platelet characters also appear.
The Platelets' boss, Megakaryocyte, shows up in later stories.
Actual platelets in the human body number about 150,000-400,000 per microliter of blood.
After the anime’s release, Platelet became one of the most popular characters, inspiring lots of fan art.
In the live-action movie, many child actresses were carefully chosen to play Platelet and her friends.
Platelet is the main character in the spin-off manga "Cells at Work! Platelets!".
Platelet’s Main Job
When a blood vessel is hurt, Platelet and her team rush in.
They gather up Red Blood Cells and Neutrophils, making a net with proteins to block the wound.
After this, the wound dries up and becomes a scab.
Platelets are always busy fixing blood vessels—sometimes in normal days, sometimes during emergencies.
Even when there are dangerous germs, they do their job bravely with help from Neutrophil.
Teamwork
Platelets work as a group, with the long-haired Platelet Leader guiding everyone with a whistle.
The team includes Vice Leader, Ushiro-Mae (who wears her cap backward), and Kyorochan.
They always stay together, working and playing as a team.
Special Training and Mentor
Megakaryocyte is Platelet’s teacher and the source of new platelets.
She is a tall woman who wears similar clothes and sometimes carries a baby.
Megakaryocyte teaches and protects Platelet and the team, being called “sensei.”
Anime, Manga, and Movie
In the anime, different Platelets, including some boyish-looking ones, appear.
Platelet has become extremely popular, leading to a big increase in fan art.
She is the star of the spin-off comic series "Cells at Work! Platelets!".
In the live-action movie, the director made sure real child actors played the Platelets, making fans very happy.
Platelet appears as a collectible in the Good Smile Company’s “Nendoroid” toy series, which comes with her signature whistle, flag, and yellow bag.
She often has fun moments riding on Neutrophil’s shoulders or playing with other cells.
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