Ines Marcen, known as Kate Key Cosplay or @katekeycosplay, is a Spanish-American cosplayer and content creator. She is popular for her detailed costumes, ASMR content, and lifestyle posts shared across Instagram, Threads, X (Twitter), YouTube, and subscription platforms.
Childhood and Family
Ines Marcen (Katekey) was born in Zaragoza, Aragón, Spain, into a Spanish family of Caucasian background.
She has kept her personal life private, but is estimated to be in her late 20s to early 30s as of 2026.
Details about her parents, childhood, and family remain undisclosed, as she focuses mostly on her professional career.
Lifestyle and Career
Ines lives a lifestyle centered on cosplay, digital content, and fan interaction. Standing 5’9” with black hair, brown eyes, tattoos, and piercings, she is known for using wigs and makeup to create versatile transformations.
She has portrayed characters such as Ahri from League of Legends, D.Va from Overwatch, Mitsuri Kanroji from Demon Slayer, and Shadowheart from Baldur’s Gate 3.
Her cosplay career began around 2012 as a hobby and grew into a full-time profession. She makes her own costumes and props, and her move from Spain to the United States has given her content a wider reach.
On Instagram, she has more than 513K followers with over 1,000 posts. She also has 72K followers on Threads and is active on X as @itskatekey. Her YouTube channel features behind-the-scenes videos, tutorials, and convention vlogs.
Some of her work has gone viral, including her Yennefer cosplay from The Witcher 3 (2022) and her Boa Hancock cosplay from One Piece (2024). In 2025, her Mitsuri Kanroji cosplay and Halloween content also gained major attention.
Her career is supported through several income streams, including Patreon, exclusive fan subscriptions, and her own shop (katekeycosplayshop.com), where she sells prints, photobooks, and other merchandise.