- Esa Sigit - Young Habibie
- Marsha Natika - Young Ainun
- Genthong Hari Selo Ali - Mr. H. Mohammad Besari (Ainun's Father)
- Watie Wibowo - Mrs. Mohammad Besari (Ainun's Mother)
- Norman R. Akyuwen - Government Official
- Agus Mahesa - Rubijanto
- Diana Puspita - Momi
- Hanung Bramantyo - Hadi
- Fadlun Syaus - Hadi's Wife
- Benk Benk - Dendi
- Salim - Sigit
- Muhamad Fahri - Ilham (Baby)
- Noah Aidan Sinclair - Ilham (2 Years Old)
- Mikael Antonius L. - Ilham (7 Years Old)
- Christoffer Nelwan - Ilham (9 - 19 Years Old)
- Fabian M. Yahva - Thareq (3 Years Old)
- Muhammad Aldevansya - Thareq (9 Years Old)
- Nigel Ryder - Germany Doctor
- Paul van Zijll - Obstetricians
- Willy Smit - Dr. Pulunggono
- JMP Wanrooij - Prof. Burgess
- Eliz - Dr. Burns
- Diana - LMU Hospital Nurse
- Isyana Bagoes Oka - Anchor
- Diana Dewi Fatimah - Hadi's Secretary
- Santana Adiputra - Dr. Bambang
- Bobby Grisseldy Somba - Dr. Krisna
- Ammara Nathifa Ashavatya - Sari
- Lenaeike Lahengky - MC
- Matthias Dorn - Dr. Bass
- Brundhild Dorn - Mrs. Isselhorst
- Agus Kuncoro - IPTN Staff
- Nanang Kusuma Edy - Sutedja's Assistant
- Ibnu Widodo - Gundul
- Kedung Darma Romansha - Boarding Student
- Edho Ronald - Sulis
- Raden Sidney Ramba Satia - Umar
- Gyan Adytya - 1st Ainun's Fans
- Taufik Kurrahman - 2nd Ainun's Fans
- James Purba - 3rd Ainun's Fans
- Irfan Eddy Sud - 4th Ainun's Fans
- Nicko Herdiansyah - Tatang
- Henky Solaiman - Highschool Teacher
- Alahya Faisal Abdullah - Solaiman
- Adhiningtyas - 1st Young Ainun's Friend
- Nurafinka - 2nd Young Ainun's Friend
- Eviyanto - Pedicab Driver
- Soca Ling Respati - 1st Gundul Pacul Boy
- Himawan Setya Darma - 2nd Gundul Pacul Boy
- Faozan Rizal
- Hestu Saputra
- Rahabi Mandra
- Emil Heradi
- Gina S. Noer
- Arief Ash Shiddiq
- Hanung Bramantyo
- Dhamoo Punjabi
- Manoj Punjabi
- Zaskia Adya Mecca
- Wiwid Setya
- Karan Mahtani
- Satrio Budiono
- Satrio Budiono
- Tya Subiakto Satrio
- Tya Subiakto Satrio
- Dwi Budi Priyanto
Capítulo disponible en las siguientes plataformas:
