Cheng Zhi

Cheng Zhi was Head of Security at the Chinese consulate in Los Angeles. When Consul Koo Yin was killed, Cheng was appointed by Consul Su Ming to lead the investigation. It was learned that Jack Bauer was responsible for the death and Cheng controlled his interrogation and torture.

Day 4

During the events of Day 4, Habib Marwan planned on using a nuclear warhead against the American people. When CTU learned that Lee Jong could help capture Marwan, he hid at the Chinese consulate. The Chinese government agreed to cooperate, but not in the appropriate time frame. President David Palmer authorized for Jack Bauer to run an covert operation in order to get Jong into custody. During the operation, Chinese guards fired and accidentally shot and killed Consul Koo Yin. Yin's successor, Su Ming, was convinced the US government was behind it.

Cheng confronts Bill Buchanan at CTU.

As head of security at the consulate, Cheng Zhi investigated the death of the consul and he wanted someone to be brought to justice for Yin's death. When Cheng looked through security cameras, he noticed one of the Chinese guards managed to pull the mask off one of the agents. Cheng was able to run the face of the agent and he discovered that it was the face of Howard Bern, a field agent with CTU Los Angeles. Cheng headed over to the Los Angeles office, in order to question them about the raiding of the consulate.

Cheng arrived at CTU and spoke with Bill Buchanan, the Regional Director of CTU. Buchanan was able to fake hourly reports, that proved that Jack Bauer and his team were at CTU during the raid. When Cheng confronted Audrey Raines, the Senior Policy Analyst of Secretary of Defense James Heller, she confirmed that she was with Jack Bauer during the midst of the operation. When Cheng asked about Howard Bern, CTU was able to prove he was at a different domestic office and Jack helped Bern escape from the building. After speaking with Edgar Stiles, Cheng realized he wouldn't be able to implicate the government and that Bauer was behind the attack.

Cheng tortures Howard Bern, in order to extract information.

While Bern tried to get out of the city, Cheng and his men were able to find his location. They illegally abducted him and pulled him in a van. Cheng interrogated Bern and told him he would let him go if he told him who ran the operation. Bern eventually confessed that Jack Bauer was the one who ran the operation. Cheng contacted the US government and told President Charles Logan that the Chinese government would put aside the involvement of the US government if Bauer was given to them and prosecuted under China laws.

With no other choice, Logan agreed to Cheng's terms and told him a Secret Service agent would deliver Bauer to the Chinese. Logan's Chief of Staff, Walt Cummings, was convinced Bauer would give up National Security information. He sent Dale Spalding to apprehend Bauer and kill him. When Bauer attempted to escape from CTU, he was shot and killed by Spalding. Cheng and the Chinese government did not go forward with accusing Logan's administration of being involved in the covert operation.

Day 5

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Cheng tells Mr. Bauer that he is too valuable to kill.

During the events of Day 5, Jack Bauer was forced to come out of hiding when a terrorist threat striked the US nation. Some time during the course of the day, Graem Bauer contacted the Chinese and informed them that Jack was still alive. After Bauer was released from custody for kidnapping President Charles Logan, Cheng's men apprehended him. Bauer was brought to Cheng, who reminded him of the events that happened 18 months earlier. Bauer asked for Cheng to kill him, but Cheng told him he was too valuable to kill.

Cheng, his men and Bauer were on a freighter, the China Queen, and were on their way back to China.

After Day 5

After Cheng arrived in China with Jack Bauer, he was ordered by his government to oversee the interrogation and torture of Jack. Cheng had his men engage in several torture tactics, but Jack wouldn't break and didn't speak a word. Cheng and his men leave Bauer alone and American men approached Jack. They claimed to be a special operations team that were sent to rescue him.

Cheng had hired the men to pose as a special opps team and he tricked Jack to give up information. Cheng learned that Hong Wai was the mole within the Chinese government. Chen killed Hong in front of Jack and had his men dismiss Jack back to his cell. The only information Cheng was able to extract from Jack was Hong's involvement with the US government. Despite Jack being interrogated for 11 more months, Cheng wasn't able to gain any new Intel.

Day 6

Cheng Zhi hands over Jack Bauer to Bill Buchanan.

When America began to suffer from a series of terrorist attacks, Abu Fayed offered to give up the culprit of the attacks, Hamri Al-Assad, in exchange for $25 million and the life of Jack Bauer. President Wayne Palmer was forced to agree with Fayed's terms, and he negotiated with the Chinese for Bauer's release.

Cheng Zhi delivered Bauer to Los Angeles through an aircraft, and he handed him over to Bill Buchanan and Curtis Manning. After Buchanan signed the release forms, Cheng warned him that America paid a steep price for the release of Bauer.

Shortly before 11pm PST, Cheng placed a call to CTU. The call was patched over to Mike Doyle's cell phone, who handed the phone to Jack. Jack was shocked to find himself speaking to Audrey Raines, whom he had been told had been killed in a car accident in China over a year ago. Cheng took the phone from her and told Jack that unless he called him back in ten minutes on a secure line, Audrey would be killed.

Cheng speaks to Jack about Audrey Raines.

Memorable quotes

• Cheng Zhi: You surely must be aware, Mr. Bauer, that China has a long memory. Only eighteen months ago, you invaded our territory and killed our consul. Did you really think that we would forget? Hmm?
• Jack Bauer: I know how this works... I need to make one phone call... Please... just one phone call. Kill me... Just... kill me...
• Cheng Zhi: Kill you? You're far too valuable to kill, Mr. Bauer.

• Cheng Zhi: (to Bill Buchanan) Please convey to your president, that Mr. Bauer never once broke his silence. He hasn't spoken a word in nearly two years. Your President paid a very high price for Mr. Bauer's freedom. What he wants from him must be very important.

• Cheng Zhi: Hello Mr. Bauer. Yes, Miss Raines is alive. If you wish for her to remain that way, you will call me back in 10 minutes at 310-597-3781 on a secure line. If you make any attempt to find our location, she dies.

Appearances

Day 4

Prequel
7:00am-8:00am	8:00am-9:00am	9:00am-10:00am	10:00am-11:00am	11:00am-12:00pm	12:00pm-1:00pm
1:00pm-2:00pm	2:00pm-3:00pm	3:00pm-4:00pm	4:00pm-5:00pm	5:00pm-6:00pm	6:00pm-7:00pm
7:00pm-8:00pm	8:00pm-9:00pm	9:00pm-10:00pm	10:00pm-11:00pm	11:00pm-12:00am	12:00am-1:00am
1:00am-2:00am	2:00am-3:00am	3:00am-4:00am	4:00am-5:00am	5:00am-6:00am	6:00am-7:00am
Conspiracy

Day 5

Prequel
7:00am-8:00am	8:00am-9:00am	9:00am-10:00am	10:00am-11:00am	11:00am-12:00pm	12:00pm-1:00pm
1:00pm-2:00pm	2:00pm-3:00pm	3:00pm-4:00pm	4:00pm-5:00pm	5:00pm-6:00pm	6:00pm-7:00pm
7:00pm-8:00pm	8:00pm-9:00pm	9:00pm-10:00pm	10:00pm-11:00pm	11:00pm-12:00am	12:00am-1:00am
1:00am-2:00am	2:00am-3:00am	3:00am-4:00am	4:00am-5:00am	5:00am-6:00am	6:00am-7:00am

Day 6

Prequel
6:00am-7:00am	7:00am-8:00am	8:00am-9:00am	9:00am-10:00am	10:00am-11:00am	11:00am-12:00pm
12:00pm-1:00pm	1:00pm-2:00pm	2:00pm-3:00pm	3:00pm-4:00pm	4:00pm-5:00pm	5:00pm-6:00pm
6:00pm-7:00pm	7:00pm-8:00pm	8:00pm-9:00pm	9:00pm-10:00pm	10:00pm-11:00pm	11:00pm-12:00am
12:00am-1:00am	1:00am-2:00am	2:00am-3:00am	3:00am-4:00am	4:00am-5:00am	5:00am-6:00am
Debrief