SEE ALSO: Jaejoong becomes a sexy motorcyclist in still cuts for drama 'Triangle'

The 'Choovely' dad will fight against police detective Jang Dong Soo (Lee Bum Soo) as a villain, and although the specific details have not been revealed yet, if his previous action scene with Cha Seung Won in the 2010 SBS drama 'Athena' is any indication, it will be an action scene to look forward to.

The drama's production company rep stated, "We are thankful to Choo Sung Hoon who readily decided to make a cameo during his busy schedule. It is not a simple cameo but a highlight scene in 'Triangle' which the entire staff though long and hard about... We anticipate that fighter Choo Sung Hoon's vivid action scene will make 'Triangle' more entertaining to watch."

'Triangle', starring Lee Bum Soo, JYJ's Jaejoong, ZE:A's Siwan, Oh Yeon Soo, and Baek Jin Hee,�will premiere following 'Empress Qi' on May 5!