When Hondo was a kid, his father left the family after falling in love with another woman and moved to Oakland, California, where he eventually had another daughter, Briana.

[6] Hondo began his Los Angeles Police Department (LAPD) career as a patrol officer with the 77th Street Area.

In 2017, Hondo was unexpectedly promoted to Team Leader after Buck was fired for accidentally shooting an unarmed black teenager during a shootout in a blatant attempt to ease the tensions between the community and the LAPD.

[10] He later starts a relationship with Nia Wells, a Los Angeles County Deputy District Attorney and recent divorcée.

[11] The relationship ends due to his anger after an encounter with a racist Arizona Department of Public Safety officer and the inability to prosecute the man who drugged and attempted to rape his sister.

[12][13] In the third season episode "Track", when Hondo pursues of an armed robbery suspect that leads to a vehicle collision, he meets a woman named Nichelle when he aids a man in an accident.

In the sixth season, at the end of the episode "Whoa Black Betty", 20 Squad reveals to Hondo and Nichelle that they're having a girl.

[14] Hondo becomes disillusioned with the LAPD after they fail to terminate a group of racist police officers despite Deacon having a recording proving their guilt.

Disgusted with the LAPD's lack of action, Hondo speaks to the Los Angeles Times about the group, risking his career.

He later dated Nia Wells, an Assistant District Attorney, but later broke up when he had threatened to go after a man, he accused of drugging his younger half-sister, Briana, at a nightclub to possibly take advantage of her.

He then went on to dating Nichelle when they first cross paths helping an injured man following a pursuit of armed robbery suspects that Hondo was in.

officer, Hondo drives a 2015 Dodge Charger Pursuit and carries a Kimber Custom TLE II in .45 ACP as his duty weapon.

She is a respected officer who has plans to improve the relationship between the LAPD and the citizens of Los Angeles, despite some resistance from the rank and file.

Team Leader Buck Spivey arrested his mother, Karen, for murdering her abusive husband, Street's father.

Early on, Street acts as a hotshot cop and a lone wolf, taking dangerous risks, making Hondo question whether he is fit for S.W.A.T.

Ultimately, in the season one finale, Street strains his relationship with the team to deal with another crisis involving his mother, which leads to Hondo kicking him off S.W.A.T.

Street eventually reports his estranged mother for parole violation and narcotics influence and has no choice but to send her back to prison.

Early in season one, Luca is kicked out of his apartment by his girlfriend, and the team is reluctant to take him in, as he is a terrible house-guest despite his friendly and easy-going personality.

Officer III Victor Tan is a three-year veteran of S.W.A.T., joining after serving with the LAPD Hollywood Division's Vice Squad.

He married his long-time girlfriend, Bonnie Lonsdale, but in the season six episode "Lion's Share", Tan learns that she has been cheating on him.

Deacon reaches a breaking point after his newborn daughter, Victoria Josie Kay, is diagnosed with a heart condition, and he cannot pay for the operation to fix it.

Deacon crashes into a truck to prevent it from hitting civilians, injuring him and requiring him to go to rehab, adding stress to the situation.

After some soul-searching and advice from Hondo and Hicks, Deacon makes the tough decision to retire in order to spend more time with his family and allow Annie to pursue her dreams of becoming an attorney.

However, he soon re-evaluates his decision following Luca's shooting and subsequent retirement and 20-Squad's staffing crisis, and eventually reverses his choice after Annie's sister Nicole moves in following her divorce to help with the children.

The LAPD Special Operations Bureau Executive Officer, Commander Robert Hicks, is the direct superior and mentor of Captain Jessica Cortez.

As a senior officer within the LAPD, Hicks carries a Kimber Custom TLE II in .45 ACP as his duty weapon.

In the third-season episode "Stigma", he attempts to commit suicide at a lake, but his former 20 Squad members find him and reach out to him and help by talking him down about how much of an impact he has on all of their lives and how hurt they would be if he went through with it.

Hicks assigns her to 20-David as an experiment to minimize wait time for medical personnel in the field, though Hondo was against the idea because the team was still reeling from Erika Rogers' death.

Formerly an Army Combat Medic in Afghanistan, EMT with LAFD, and certified in mountain and deep water rescue, Fowler proved herself as an asset to the team in trying to save a suspect's life, despite Hondo's orders.

Nia Wells is LA's Deputy District Attorney and Hondo's love interest, introduced in season two, though they later end their relationship.