- Country: USA
- Genres: Action, Adventure, Animation
- Release: 2021-04-15 (USA)
- Director: N/A
- Writers: Owen Dennis , Justin Michael , Lindsay Katai , Alex Horab
- Language: English
- Stars: Johnny Young , Johnny Young , Sekai Murashige , Sekai Murashige , Jeremy Crutchley , Lena Headey , Tohoru Masamune , Steve Park , Izaac Wang , Izaac Wang , Nick Kishiyama , Nick Kishiyama , Niki Yang , Niki Yang , Naia Yoshida
- Runtime: 11 min
- Awards: N/A
- AKA: The Twin Tapes (United States of America)无尽列车 第四季 (China)
- Plot: Once great friends, Ryan and Min-Gi's relationship slowly dissolves over the course of years of disgruntlement, culminating with their reunion in the restaurant.
- IMDB:tt14081982
Infinity Train Season 4 Cast
Johnny Young
Min-Gi
Johnny Young
Teen Min-Gi
Sekai Murashige
Ryan
Sekai Murashige
Teen Ryan
Jeremy Crutchley
One
Lena Headey
Amelia
Tohoru Masamune
Ryan's Father
Steve Park
Min-Gi's Father
Izaac Wang
Young Min-Gi
Izaac Wang
Ryan's Brother#1
Nick Kishiyama
Young Ryan
Nick Kishiyama
Ryan's Brother#2
Niki Yang
Min-Gi's Mother
Niki Yang
Announcer
Naia Yoshida
Ryan's Sister