';
| Fighter | Nickname | Height | Weight | Association | |
| Chan Woo Park | "Monkey Zombie / Timid Killer" | 5'9" (1.75 m) |
145 lbs (65.77 kg) |
Flame Gym / The Gym Lab | |
| Dong Joo Lim | "Sharp" | 6'1" (1.85 m) |
210 lbs (95.25 kg) |
The Gym Lab / Team Crazy | |
| Evgenii Moiseenko | 5'10" (1.78 m) |
165 lbs (74.84 kg) |
Team Marco / The Gym Lab | ||
| Jeong Yun Choi | "Flamingo" | 5'9" (1.75 m) |
125 lbs (56.7 kg) |
The Gym Lab | |
| Ji Yeon Seo | "Honey Bee" | 5'5" (1.65 m) |
115 lbs (52.16 kg) |
The Gym Lab | |
| Joon Gun Cho | "Tyrant" | 5'3" (1.6 m) |
126 lbs (57.15 kg) |
Team Marco / The Gym Lab | |
| Jun Hyung Lee | "Gargamel" | 5'9" (1.75 m) |
145 lbs (65.77 kg) |
The Gym Lab | |
| Jung Han Lee | "Jangsan" | 5'11" (1.8 m) |
156 lbs (70.76 kg) |
The Gym Lab / Team Crazy | |
| Kevin Park | "The Mutant Vampire" | 5'3" (1.6 m) |
145 lbs (65.77 kg) |
The Gym Lab | |
| Myung Gu Kim | 5'8" (1.73 m) |
145 lbs (65.77 kg) |
The Gym Lab | ||
| Seong Min Kim | 5'8" (1.73 m) |
135 lbs (61.23 kg) |
The Gym Lab | ||
| Si Yoon Park | "Sankaru" | 5'1" (1.55 m) |
103 lbs (46.72 kg) |
The Gym Lab | |
| Sung Dae Kang | 5'7" (1.7 m) |
155 lbs (70.31 kg) |
The Gym Lab | ||
| Tae Wan Kim | 5'9" (1.75 m) |
172 lbs (78.02 kg) |
The Gym Lab | ||
| Yeon Hwa Park | 5'4" (1.63 m) |
120 lbs (54.43 kg) |
The Gym Lab | ||