Penelope Garcia is the BAU's audio/visual technician.

On the Job
Garcia seems to share a playful, flirtative relationship with Derek Morgan. When working together, they refer to each other by such names as "sweet cheeks" or "baby girl". There hasn't been an actual romantic relationship, though Garcia once got a little jealous while watching Morgan dance with two women. It is clear that the two of them care very deeply for each other, and share a sibling-type love.

Some cases seem to eat away at Garcia, as she often gets nervous or upset when analyzing video or sound recordings of murders or other...

Kevin Lynch is an audio/video tech who assisted the BAU in finding Garcia's attacker in "Penelope".

On the Job.
Kevin sent the team live video alerting that the unsub was in the BAU headquarters. He was intensely impressed by Penelope's computer skills, and the feeling was mutual. At the end of the episode Garcia was introduced to Kevin, and the two have been romantically involved ever since. Though Garcia was briefly worried about violating FBI rules against fraternization, her worries did not bear fruit. Kevin visits the BAU often to spend time with Garcia, and seems to have been accepted...