Here is a list of the extremely fit participants taking part in the demanding challenges in Physical: 100:-
- Yang Hak-seon – Professional gymnast
- Ma Sun-ho – Bodybuilder
- Hwang Ji-hun/Agent H – UDT reservist
- Kim Ye-hyun – Former fencer
- Bang Seong-hyeok – Trainer
- Florian – German fitness model and TV personality
- Kim Eun-ji – Competitive fitness model and trainer
- Kim Chun Ri – Bodybuilder for 17 years
- Jang Eun-sil – Wrestler for 17 years
- BBULKUP – Food Service CEO. He was doing fitness but became an influencer. He even has his own YouTube channel and business.
- Shim Eu-ddeum – Fitness YouTuber with 1.21 million subscribers
- An Da-jeong – Bodybuilder
- Son Hee-dong – Wrestler
- Son Hee-chan – Ssireum wrestler
- Tarzan – Travel YouTuber
- Kkang Mi – Sergeant first class reservist
- Jang Seong-min – National Rugby Player
- Park Jin-young – National Team Luger
- Cho Jung-myung – National Team Luger
- Park Jung-ho – Prison guard for 17 years
- Jo Jin-hyeong – Car dealer
- Choi In-ho – Trainer
- Jung Hae-min – Cyclist
- Jjang Jae – The E-Tool
- Cha Hyun-seung – He appeared on Single’s Inferno season 1. He’s also a dancer.
- Jo Yeon-joo – 24-year-old cheerleader
- Elaine – Actress from Singapore
- Ha Je-yong – Arm-wrestling champion
- Park Hyung-geun – MMA fighter
- Song A-reum and Kim Kang-min – Married Bodybuilders
- Lee Dae-won – Trot singer
- Park Min-ji and Lee Da-hyeon – Ssireum wrestlers
- Seol Ki-Kwan – National Team Bodybuilder
- Kang Han – National Team Bobsleigh Athlete
- Kim Sik – National Team Skeleton Coach
- Jeong Bo-kyeong – National Team Judo Player
- Miracle – Dancer
- Choo Sung-hoon – MMA fighter at ONE Championship
- OVAN – South Korean rapper
- Shin Bo Mi Rae – Professional Boxer
- Caro – Crossfit YouTuber
- Kim Byeong-jin – 18-year-old National Team Free Poomsae Competitor
- Jeon Young – The leader of Korea’s first bone-breaking team and movie choreographer. He designed the choreography for the Netflix Korean dramas Kingdom and Hellbound.
- Dustin Nippert – Baseball player for KBO Doosan Bears
- Yun Sung-bin – Former skeleton racer. He won gold at the Pyeongchang Winter Olympic Games.
