|Death cause:||Shot by Chase Edmunds|
|Voice actor:||Lei Yin|
|Appears in:||24: The Game|
|First appeared:||"Tony's Unexpected Find"|
|Last appeared:||"Chase Ambushed"|
Joseph Sin-Chung was Peter Madsen's second-in-command.
They brought him in for interrogation and Sin-Chung unlocked the PDA which held a hidden EMP device, taking out all of CTU's computers and electronics aside from shielded rooms such as Tech 1 and the CTU panic room. Sin-Chung was the technological person, uploading the data from the CTU hard drive and has tech labs inside his base, located on 62837 West Vista Road. Sin-Chung figured how to create the earthquake by using a synchronizer that was rendered unusable during a firefight. This forced Chase Edmunds to go and steal another one. Once Chase broke cover, Sin-Chung and a team of men chased him, knocked his car off the road, and attempted to kill him at an abandoned sawmill. Sin-Chung was the last man to go, but Chase killed him in a gun battle a short distance from the sawmill. Chase then kicked away the firearm from Joseph's hand and after making sure he was deceased, he roam aged through Joseph's pockets and answered an incoming phone call from Virgil who was sending the sending the coordinates for where he would have to pick up Sonny, one of the conspirators, at 34002 West Lassen by truck.