| Name | Period | Host |
|---|---|---|
| Nha, Hyunchul | Jun 19, 2015 ~ Aug 31, 2015 | Kim, Jaewan |
| Nha, Hyunchul | Jun 19, 2015 ~ Aug 31, 2015 | Kim, Jaewan |
| Thirumalai, Dave | Jun 17, 2015 ~ Jul 8, 2015 | Hyeon, Changbong |
| Kim, Hyung Joon | Jun 10, 2015 ~ Jul 20, 2015 | Son, Young-Woo |
| Nguyen, Ba An | Apr 15, 2015 ~ Jul 14, 2015 | Kim, Jaewan |
| Nguyen, Ba An | Apr 15, 2015 ~ Jul 14, 2015 | Kim, Jaewan |
| Park, Mu In physics | Sep 16, 2014 ~ Sep 22, 2014 | Kim, Myungshik |
| Kwon, Young-Kyun | Sep 1, 2014 ~ Aug 31, 2015 | |
| Park, Haesun | Jun 22, 2014 ~ Jul 5, 2014 | |
| Thirumalai, Dave | Jun 21, 2014 ~ Jul 11, 2014 | Hyeon, Changbong |