Ailiseu Episode #2.5 (2009– ) Online
- Original Title :
- Episode #2.5
- Genre :
- TV Episode / Action / Mystery / Romance / Thriller
- Year :
- 2009–
- Directror :
- Tae-hun Kim,Min-soo Pyo
- Cast :
- Hyuk Jang,Beom-su Lee,Da-hae Lee
- Writer :
- Kyu Won Jo
- Type :
- TV Episode
- Time :
- 1h
- Rating :
- 6.2/10
Yoo-Gun plans to use Baek San as bait to figure out what IRIS wants with him and who the IRIS mole is in the NSS base. Soo-Yeon tries to recover from the effects of killing for the first time.
| Episode credited cast: | |||
 | Hyuk Jang | - | Jung Yoo-Gun |
 | Beom-su Lee | - | Yoo Joong-Won |
 | Da-hae Lee | - | Ji Soo-Yeon |
 | Yeon-su Oh | - | Deputy Director Choi Min |
 | Yeong-cheol Kim | - | Baek San |
| Soo-hyang Im | - | Kim Yeon-hwa |
| Doo-Joon Yoon | - | Seo Hyun-Woo (as Doojoon) |
 | Joon Lee | - | Yoon Shi-Hyuk |
 | David Lee McInnis | - | Ray |
| Jeong-kil Lee | - | Jo Myeong-Ho |
| Rest of cast listed alphabetically: | |||
 | Sung-Hyun Baek | - | Kang Byung-Jin (as Baek Sung Hyun) |
| Hyun Jung Cha | - | Yoo Hae Young |
| Yoon Hoo Go | - | Yoo Jin |
| Seok-won Jeong | - | Young Baek San (as Suk Won Jung) |
| Hyeong-kon Kim | - | Song Yeong-Min |