Geng: Pengembaraan Bermula: Reparto
Nur Fathiah Diaz
Upin / Ipin (voice)
Amir Izwan
Badrol (voice)
Kee Yong Pin
Lim (voice)
Ida Rahayu
Oopet / Mystic Voice (voice)
Shafiq Isa
Uncle Muthu / Singh / Mystic Voice (voice)
Abu Shafian Abdul Hamid
Tok Dalang (voice)
Hajah Ainon Ariff
Opah (voice)
Rajab Abdul Rahman
Ah Tong (voice)
Ros Hasrol Ahmad
Salleh (voice)
Kannan Rajan
Rajoo (voice)
Balqis Fadhullah Lee
Sister Ros (voice)
Anas Abdul Aziz
Sapy / Rembo / Atan / Baby Oopet / Mystic Voice (voice)
Safrizan Mohd Razali
Zarien Farein / Mystic Voice (voice)
Tan Sheik Wei
Lucy (voice)
Ehsan Azharuddin
Poacher (voice)
Burhanuddin Radzi
Bus Driver (voice)
Azfaren Aznam
Mystic Voice (voice)