Emily Prentiss是外交官的女兒，最近剛加入團隊，外界謠傳她靠關係進來，必須向Hotchner證明自己存在的價值。然而，FBI主任Erin Strauss是希望藉由她來削弱Hotchner的勢力，然而她不願這麼做，打算辭職。她自己承認是個性格古怪，會說多國語言。

Daughter of an ambassador, Prentiss showed up with papers stating she was the newest member of the BAU. It was implied initially that she pulled some strings through family ties to get her placement on the team. However, it is later revealed that FBI Section Chief Director Erin Strauss placed her there to undermine Hotchner. She refused to do so, and decides to resign instead. She is a self-professed nerd and is also well spoken in some foreign languages.

Penelope Garcia是一名電腦奇才，協助團隊進行案例研究。早年失去雙親，曾以當電腦駭客維生。Garcia曾侵入FBI系統而引起他們注意，沒得選擇加入團隊來避免刑責。她是Jareau兒子Henry的教母。

Garcia is the team's computer technician at BAU Headquarters in Quantico. She lost both her parents at a young age and then lived off the grid as a computer hacker. Garcia brought the attention of the FBI upon herself after illegally accessing some of their equipment. She had little choice but to join the ranks of the bureau to avoid a jail sentence. She is godmother to Jareau's son, Henry.

Jennifer "J.J." Jareau，是一名自信的年輕女孩，在團隊中負責聯繫溝通的工作。她和一位新紐奧良的員警William LaMontagne交往，共同撫養一位孩子Henry。

Jareau acts as the team's liaison with the media and local police agencies. She is dating William LaMontagne, a New Orleans Police Officer. The two have a son together, Henry.

Spencer Reid，典型的天才，12歲就從拉斯維加斯公立高中畢業，常被人稱做Rein博士。雖擁有高智商但卻是社交生活白痴。擁有數學、化學和程式設計的博士學位，心理學和社會學的學士學位，目前正在攻讀哲學。

Dr. Reid is a genius who graduated from a Las Vegas public high school at age 12. He is almost always introduced as Dr. Reid.It has been revealed that he holds Doctorates in Mathematics, Chemistry, and Engineering, BAs in Psychology and Sociology, and is working on a BA in Philosophy.

Derek Morgan特警是一名研究強迫性犯罪心理的專家，充滿自信，急躁武斷。靠美式足球獎學金進入西北大學就讀，柔道黑帶，教授FBI自我防衛課程，曾經待過拆彈小組和芝加哥警局。

Morgan is a confident, assertive, and often hot-tempered character. He went to Northwestern University on a football scholarship, holds a black belt in Judo, runs FBI self-defense classes, and served in a bomb squad unit and as a Chicago police officer.

Rossi特警原是行為分析組的成員，過去提早退休計畫寫書並參加巡迴座談，並在2007年自願返回該單位，並且一回來未完的棘手案件就一一浮出檯面。

Rossi, a "founding father" of the BAU, was in early retirement until his voluntary return to the BAU in 2007. He had retired in order to write books and go on lecture tours, but returned to settle some unfinished business which was revealed shortly after his return.

Aaron Hotchner特警是一個以家為重、容易贏得他人信任且打開心房的人，之前待過FBI西雅圖分部。他一直希望家庭和工作能夠取得平衡是本劇的故事主軸之一。

Hotchner used to be a prosecutor, and was formerly assigned to the FBI Field Office in Seattle. His attempts to balance his family life and his job successfully had been an ongoing theme on the show.