Problematic Men (Korean: 문제적남자) also known as The Brainiacs is as South Korean television program that currently stars Jun Hyun-moo, Kim Ji-seok, Lee Jang-won (Peppertones), Ha Seok-jin, Tyler Rasch and Park Kyung (Block B). It currently airs on Mondays at 23:00 (KST).
- Jun Hyun-moo (Ep 1-present)
- Kim Ji-seok (Ep 1-present; absent in episodes 174, 179-198)
- Lee Jang-won (Peppertones) (Ep 1-present; absent in episodes 135, 174)
- Ha Seok-jin (Ep 1-present; absent in episode 174)
- Tyler Rasch (Ep 1-present; absent in episodes 37-39, 56, 72, 145-148, 163-164, 174)
- Park Kyung (Block B) (Ep 25-present; absent in episodes 37-39, 77, 145, 149, 174, 205)
- RM (BTS) (Ep 1-21)