Trial Analysis Corporation
The head of Trial Analysis Corporation (TAC). He is a brilliant psychiatrist who uses his knowledge of human behavior to help his clients gain favorable outcomes in jury trials.
- Break the Haughty: Bull doesn't like people who act as if they're above other people and will find a way or two to cut his targets down to size.
- Dark and Troubled Past: Bess Johnson immediately sees through Bull's facade and says that he could only get so skilled at what he does by coming from a troubled home and having to learn how to read people in order to keep them happy and himself out of trouble. Turns out that he's the son of a man who defrauded his hometown when he was a kid.
- The Gadfly: He loves messing with people for his own amusement. There are occasions when his antics are germane to the case TAC is working on.
- Inner Monologue: Bull frequently imagines what people might say at any given moment.
- Limited Wardrobe: In Season 1, He almost always wears a dark suit and a white shirt with a cardigan. Chunk observes that the look is specifically tailored to make Bull noticeable but still inconspicuous enough to be able to observe others without arousing too much attention. In Season 2, he loses the cardigan and begins to occasionaly wear a tie.
- Loser Son of Loser Dad: His father defrauded an entire town out of a large sum of money and this resulted in Bull becoming a social pariah for simply being the man's son.
- My Greatest Failure: Bull wasn't able to help his sister out, who was in an abusive relationship even though she made the choice to stick through it.
- Nice to the Waiter: He believes that everyone is worthy of receiving attention and being celebrated, especially a person whose contributions are taken for granted. The most notable instance is his personal coaching of Liberty Davis to turn her from a meek backbencher into a legal star in her own right.
- Red Oni, Blue Oni: Red to Marissa's blue. He is a very passionate person who loves to manipulate people for fun and has a tendency to pursue seemingly illogical and tactically unsound gambits without ever explaining what he's doing with the simple expectation that people will trust him because he is who he is.
- Unkempt Beauty: He's handsome and clearly has expensive tastes but his pricey suits are almost always rumpled, his hair is tousled, and he sports varying amounts of Perma-Stubble.
TAC's in-house attorney. His primary responsibility is to act out the lawyer's role in TAC's mock trials so that the company can measure mirror juries' reactions and gauge what sort of verdict real juries might come up with. He will also very occasionally go to trial if Bull brings in a pro bono client, although this isn't something he particularly enjoys doing.
- Crusading Lawyer: He works with TAC because he believes that the innocent deserve the best chance possible in court.
- Screw This, I'm Outta Here!: While he was a prosecutor he had overwhelming evidence to get a conviction but also knew that the defendant was innocent. Despite being pressured to get the win, he decided to take a moral stance and simply walked away from his job. Bull says he'd never have anyone else represent him because of this.
- It Is Pronounced "Tro-PAY": His surname is pronounced "Cologne" or "Cor-LOAN", not "Colon".
Bull's right hand in running TAC's affairs. She primarily oversees the company's operations from the office and is also in charge of client acquisition and relations. Prior to be being recruited to TAC, she had a career as a NSA analyst.
- Dark and Troubled Past: Her mother was a drug addict.
- The Lancer: Her role within the firm is to keep things running smoothly and to calm clients down when Bull's antics start getting outlandish.
- Ms. Exposition: Due to her being Bull's lancer, she is regularly providing reports and updates about how the trial of the week is progressing and, in the process, helping the TV viewer to understand the legal and psychological issues at hand.
- Red Oni, Blue Oni: Blue to Bull's red. She is a calming influence in an office full of passionate and, in Bull's case, unpredictable people.
TAC's image expert. His job is to make sure clients look presentable and to alter their appearances as necessary in order to subliminally influence juries in order to gain sympathy in the courtroom. He is also a former high-profile college football player, a fact that people can't help but bring up.
In Season 2, he decides to switch careers and begins attending law school while helping his clients improve their images on the side. As of Season 3, Chunk is on his way to do his bar exam.
In Season 5, Chunk's an official attorney. And his real name is Chester Palmer.
- Black and Nerdy: He loves gaming and e-sports, especially Titanfall, and is annoyed that his passion isn't accepted by the mainstream despite its huge following.
- Chekhov's Gun: His NFL football experience. He uses it at one point to tackle a suspect in "Dressed to Kill".
- Daddy Had a Good Reason for Abandoning You: Towards his daughter. She thinks he abandoned her; he never knew she existed.
- Only Known by Their Nickname: He's only ever addressed as "Chunk" and never by his given name.
- Papa Wolf: Although reluctantly crosses over with Deadbeat Dad due to the fact that he didn't know his daughter for years.
- Real Men Wear Pink: He is a fashion maven and dresses in very bright clothing with strong patterns. He is also a former football player and is built like a brick wall.
- Screw This, I'm Out of Here!: He was so well-known as a star football player that people still know him by sight at least two decades after his playing days ended. However, he decided to quit the day before the NFL draft because he felt he'd achieved everything he wanted to as a football player and was looking for a new challenge.
- The Social Expert: A role he sometimes shares with Marissa, he's known for being able to make witnesses more relatable, sympathetic, and understandable to the jury.
- Straight Gay: Although he will occasionally inject a bit of camp into his mannerisms to get a laugh from his co-workers.
- Twofer Token Minority: He's both black and gay.
TAC's in-house investigator. She is a former FBI agent with extensive contacts within federal, state, and local law enforcement agencies along with a collection of criminal informants, which she uses in order to find information that's not publicly available.
- Big Sister Instinct: She exhibits this towards Cable, and even towards Marissa at times.
- Fair Cop: A pretty FBI agent. She sometimes puts this into use when she talks to informants.
- Gender-Blender Name: Like Cable, you're forgiven if you think she's a guy based off her name.
- Private Detective: The job she most usually does for TAC.
- Tomboyand Girly Girl: She is the "tomboy" to Marissa's, and even Cable's, "girly girl".
TAC's resident computer expert. Although she is the company's go-to person for tech related matters, due to the fact that she is the youngest and newest employee, she doesn't fully understand the full scope of trial analysis nor why they should continue to use low-tech methods when everything is online.
- 10-Minute Retirement: Only a few episodes after Bull lets her go, her role in "Gag Order" helps win the case and Bull gives Cable her job back at the end of the episode, Of couse, awkwardly and apologetically.
- As You Know: Because she is the newest member of the team, she is the one asking questions about what Bull is doing and providing the TV audience with further information through the explanations given to her.
- Deadpan Snarker: Her preferred method for calling Jason out.
- Dropped a Bridge on Her: More like fell off a bridge. Season 3 opened on a very shitty note for Cable that spelled the end for her.
- Gender-Blender Name: You can be forgiven if you think that Cable is suppose to be a guy's name.
- Kill the Cutie: Cable went for a plunge off a broken bridge in New Jersey after renting a car whose driver didn't stop in time. It's the first freaking scene of Season 3, too. NOT a fun way for her actress to move on from the show by any means.
- Naïve Newcomer: The youngest, and newest, member of TAC.
- Meaningful Name: "Cable" for a brilliant computer hacker. It shouldn't be a nickname, as it's even used in official situations, but if it is, it would be They Call Him "Sword".
- Ms. Exposition: She, alongside Marissa, is the team member responsible for providing background information and updates on the cases TAC is working on, helping the viewing audience keep track of what is going on with the plot.
- Only Known by Their Nickname: Like with Chunk, her teammates only ever address her as "Cable".
- Otaku: In "The Fall", she's seen reading "The Devil is a Part Timer" manga. She also shows her love for shojo manga in "Bring it On".
- Playful Hacker: Hacks into anything online. Computers, bank accounts, social media accounts.
- Reality Ensues: At the end of "Keep Your Friends Close", Bull is forced to let her go for nearly putting TAC in trouble.
- then in the following episodes, it shows how being arrested for breaking Federal law makes finding a job in cyber security very difficult.
An ex-supermodel who Bull meets during an investigation. Following her retirement from the modeling industry, she gets hired as an employee, particularly as the company secretary.
- Pop-Cultural Osmosis Failure: She admits that she didn't understand anything Cable mentioned regarding her love for shojo manga.Allie: I'm gonna not pretend that I understood that. Is it Japanese?
An ex-NSA analyst recruited by Marrisa to take over Cable's workload after she died in a bridge collapsing incident. Formerly worked alongside Homeland Security.
- Amateur Sleuth: Uses OSINT work to help TAC investigates cases or clients if and when they are discrepancies.
An attorney who occasionally works with Bull and TAC. She was originally a little-valued associate of Clyde Rutledge, a pompous spotlight-stealing lawyer, but Bull saw her potential and put her front and center of a high-profile murder case, giving her a significant career boost in the process.
- Meaningful Name: "Liberty" since she was freed from being under the shadow of Rutledge and was able to make a name for herself.
- Took a Level in Badass: She was originally quiet and meek but Bull quickly realized that she was capable of much more and carefully coached her through a very high-profile murder trial. Since then, she's become much more confident and assertive as a lawyer.
A Texas-based corporate lawyer who's clashed against Bull in the past and always came out on top.
- Bitch in Sheep's Clothing: Her folksy demeanor is used to hide a stone cold ruthlessness.
- Everyone Has Standards: She is willing to use any underhanded method to gain an advantage in court, but she refuses to represent her client in a future appeal when she suspects they had a witness assassinated.
- Hello, Attorney!: A very attractive corporate lawyer.
- New Old Flame: Has a history with Bull, both professionally and romantically.
- The Rival: To Bull, being the only person he has "not won" against in court.
- Slap-Slap-Kiss: Her and Bull have this relationship. One minute they're at each other's throats, the next they're making out.
A lawyer who Bull contacts after Benny was detained for breaking the Brady Act.
- Gender-Blender Name: Bull expects her to be a man because of it.
- Hello, Attorney!: She's a smart, beautiful and successful lawyer.
- Start My Own: In "Benevolent Deception", J.P. wants to win the case against Cecilia Novak, who's accused by the DEA of smuggling drugs into Miami so that she can start her own law firm, using the case to bolster her reputation.
- What Happened to the Mouse?: Season 1 ends with the implication that Bull and Nunnelly will be working together frequently in the future. She never appears after season 1. In reality, this was due to the sexual harassment Dushku experienced on set.