| Hint | Character |
| ...contacts this character regarding stem cell donation | |
| ...is kidnapped with this character in Season 1 | |
| ...is killed by this character in a season finale | |
| ...was granted immunity for revealing the location of this character in Season 2 | |
| ...prays at a mosque while this character executes his/her terrorist plot | |
| ...is the sibling of this character, who aids CTU in an undercover operation | |
| ...begins a relationship that does not last end the end of Season 2, as evidenced by his/her partner's involvement with this character in Season 3 | |
| ...helps this character escape from a dangerous undercover mission at a deadly cost | |
| ...is shot by this character who attempts to escape with a deadly pathogen | |
| ...believed he had obtained a deadly bioweapon, before it was revealed that the pathogen had already been sold to this character | |
| ...ordered the execution of this character by one of his/her own agents | |
| ...is mentioned by this character as one of the many people who lose their lives by staying close to Jack Bauer in Season 7 | |
| ...arrests this character for conspiring with terrorists and murdering a fellow agent in the FBI server room | |
| ...provided classified information to this terrorist in Season 7 | |
| ...is critically injured in a car crash in Season 7 caused by this character, who does not survive the crash | |
| ...has his/her dinner date cancelled because his/her significant other is busy kidnapping this political figure in Season 7 | |
| ...disagrees with his/her spouse's decision regarding the fate of their child, who orchestrated the assassination of this character | |
| ...provides this terrorist with information regarding the presence of the president's daughter in Season 7 | |
| ...ordered the execution of this political figure while holding him and others hostage, though the execution never takes place | |
| ...meets with this character in Season 7, who tries to convince him to abandon the senate hearings regarding a former CTU agent's methods of interrogation | |
| ...advised the president to carry out an air strike on this character in Season 6, despite the fact that he was holding his/her own grandson hostage | |
| ...worked with this character to cover up the theft of five suitcase nukes in Season 6 | |
| ...was the spouse of this character, who had a relationship with a CTU agent before she was married | |
| ...hides with this character behind a dumpster during an attack on CTU, though their hiding place is quickly discovered | |
| ...is shot after identifying him/herself as the director of CTU in order to protect this character | |