Kathrina Irene is a member of JKT48.
- 2019.12.01 - Joined JKT48 as a member of Academy's Class B
- 2020.01.25 - Promoted to Academy's Class A
- 2021.03.11 - Promoted to JKT48 New Formation
- Hobbies: Dancing, Ukulele, drawing, photography, listening to music.
- Admired Members: Maria Genoveva Natalia Desy Purnamasari Gunawan
- Strenghts: Dancing
- Weakness: Poor time management
- Favorite word: "Ethernity"
- Ambitions: Performer
- Favorite foods: Cherry
- Hated foods: Spicy foods
- Favorite colors: Black, brown, gray, white
- Foreign language you want to master the most: Japanese
- Favorite school subject: English
- Favorite hangout place: Theme park
- Favorite animals: Alpaca
- Younger sister of Stephanie Pricilla Indarto Putri
- On January 23, 2020, she passed the Class B Academy Exam in Step 1.
- On January 25, 2020, she passed the Class B Academy Exam in Step 2, and was promoted to Class A.
- Tested positive for COVID-19 on January 27, 2022
- Adzhana Shaliha also tested positive that day.