Top-billed cast
- CCha Sun-hyung
- LLee Jae-hwan
- LLee Byung-joon
- KKim Mu-seob
Frequently asked questions
What is Muscle Grandpa rated?
Muscle Grandpa does not yet have enough audience votes for a stable rating.
Who directed Muscle Grandpa?
Director information is not available for Muscle Grandpa.
When was Muscle Grandpa released?
Muscle Grandpa was released in 2021.
This movie has limited rating data, so it is not included in search indexes — but its information is fully available here.
