* CompleteMonster: The Jack of All Trades, real name Albert Newquay, is a sinister SerialKiller who functions as the ArchEnemy of [[TheProfiler FBI Profiler]] Samantha Waters. After a killing spree with no set MO--hence his moniker--Jack became obsessed with Sam and murdered her husband, later targeting people she knew to isolate her when she returned to the FBI. Murdering more people, Jack proceeded to {{frame|Up}} Sam's mentor Bailey Malone for a murder, drugged Sam and tricked her into committing murder, thinking she was killing Jack in self defense. Abducting a fangirl of his, Jack tortured and brainwashed her into the Jill of All Trades, initiating a new killing spree with her. When Jill was captured by the police, Jack arranged her death and had a man he'd brainwashed into believing himself to be Jack of All Trades arrested by the police before later revealing his true identity to Sam and kidnapping her to make her a killer like himself. When this failed, he attempted to kidnap her daughter Chloe to turn Chloe against Sam forever and make it so Sam truly had nobody left. {{Sadist}}ic, {{manipulative|Bastard}}, and [[StalkerWithACrush committed to making Sam his own]], Jack sets the standard for killers on the show, with a body count few killers can even dream of.
* FanPreferredCouple: at the time the series aired, the majority of the fanfic for the show paired Sam with co-worker Detective John Grant; the shippers called themselves 'Believers' (this was before the fashion for {{Portmanteau}} couple names) even though the on-screen chemistry and {{UST}} (as noted on the main page) was between Sam and her mentor Bailey. This might be because John was played by the then late-twenties [[MrFanservice Julian]] [=McMahon=] of Series/Charmed1998 fame, as opposed to the older and rugged Robert Davi.
* {{Moe}}: Sam has almost constant PuppyDogEyes, without even trying.
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