The Ace: Deconstructed in a sense. His huge win record has made him arrogant and self-serving. Although this ruthlessness wins cases for the clients he ends up annoying a lot of people (including the department heads), which has begun to backfire, especially since Daniel Hardman was plotting with Louis to get rid of him.
Amoral Attorney: He will often use questionable and underhanded tactics to win a case or close a deal, but he will also go out of his way to help out an innocent person even if it jeopardizes the case. His 'crusades' are usually motivated by his ego: he is showing off what a great lawyer he is. However, he seems able to sacrifice his ego if the case is really important.
Even Amoral Attorneys Have Standards: Harvey is quite angry to learn that the district attorney suppressed evidence and put an innocent man in jail. He also frequently makes it clear that there are lines he'd never cross and expects Mike not to cross them either. He's quite offended when Louis accuses him of trying to take all the credit for a win they received together:
Harvey: I'd never do that Louis. But you would and that's your problem.
Obfuscating Stupidity: Harvey creates the vibe of an Amoral Attorney as bait for crooks - they have a harder time predicting his moves, since they expect him to act just like them.
Papa Wolf: Harvey seems to have turned into one, despite his protestations to the contrary. In season two premiere he becomes fiercely protective of Mike, to the point where he throws his Plausible Deniability out the window to save Mike's job. This coming from the man who, twelve episodes earlier, had said: "I have to put my own interests above yours. It's nothing personal."
Over time, it becomes more and more of a Parental Substitute as the two get closer. It doesn't help that Harvey has a Freudian Excuse and Mike has no one else in his life.
Screw the Rules, I'm Doing What's Right!: He has very strong rules about personal conduct as a lawyer and he won't compromise himself to play office politics, even when Jessica wants him to do the bidding of another Senior Partner. Above all, Harvey won't betray his clients and lie to them, and he expects them not to lie in return.
"Well Done, Son!" Guy: In a flashback we see that Harvey's push to become a partner in the firm was motivated in large part by a desire to make his father proud. His father dies the day before the promotion becomes official and Harvey never had a chance to tell him.
Interesting for this trope: it seems like his father was already proud of him.
Portrayed by:' Patrick J. Adams
Brilliant but Lazy: Mike fits most of the trope conventions before he starts working as a lawyer. Once he starts working in the firm he's shown to be a dedicated employee, regularly working through the night when required.
Hypocrite: Mike's defining character trait, combined with an astonishing lack of self awareness.
Justified Criminal: In the premiere, Mike only agrees to act as a drug courier so he can pay for his grandmother's medical treatments. We later find out that he only agreed to help people cheat on the LSATs because he needed the money to pay for full time care for his grandmother.
Married to the Job: Mike's life pretty much revolves around Harvey and Jessica. Not just because he's passionate but also because he really has no friends or family outside of the firm.
Took a Level in Badass: In the season two premiere Mike has more confidence than at the beginning of the series and is willing to stand up for himself when threatened. When a women he tried to help backstabs him in a lawsuit, he turns the tables on her and forces her to accept a settlement. He later calls out Trevor on his betrayal and points out that he knows so much about Trevor that he could make his life hell if he wanted.
The Heart: Combined with something of a Morality Pet. More so than Mike, she's usually the one everyone looks towards for stability and the one to question if they're crossing moral and ethical lines. Which makes the story arc where she destroys a memo all the more shocking, all else aside, as it is a major ethical line she has crossed.
Book Dumb: Not exactly, but there isn't a trope for Test Dumb. Rachel isn't a lawyer because she can't pass law school entrance exams or the bar. It's not a lack of intelligence or knowledge, but simple test anxiety.
Which is why she is so proud when Mike tells her she has finally passed the LSATs in the second season.
Nice Girl: Despite allusions to a less than moral past, she is definitely this. She is generally friendly to everyone in the office and will even go out of her way to help those in need, even if they have mistreated her. Her interactions with Louis' associate are a good example.
Non-Idle Rich: Her parents are loaded, but she still wants to make her own way.
Overshadowed by Awesome: Despite being smart, accomplished, beautiful, and having a spine to even stand against her father, Rachel simply doesn't measure up to Mike (legal prodigy /w photographic memory), Donna (the all-knowing), Louis (ruthlessly effective and financial wizard), Harvey (do I need to even begin?), and Jessica (one of the few capable of pulling one over on Harvey). Poor Rachel doesn't really have much going for her in the department of "extraordinary ridiculous superhuman craziness".
Single Woman Seeks Good Man: It's worth noting that Rachel is most attracted to Mike whenever he is acting selfless or sticking to his ideals, and promptly calls him out or straight up ignores him whenever he veers from the good path.
Crazy Cat Man: Louis, though he only has one cat, gets this with quality not quantity.
Even Evil Has Standards: Louis, even after going over to Hardman's side, wouldn't vote to fire Harvey when Hardman called for it, and voted to get rid of Hardman after finding out that Hardman faked the memo that caused the lawsuit against the firm.
A Father to His Men: Louis, though a sadist teacher to his associates, cares for them on some level. Showing weakness may not be liked but when he was quitting and saw Mike come out of an elevator with a bloody face, he dropped his stuff and rushed to help Mike, taking him to the bathroom to get cleaned up without a second thought.
Likewise, though he was determined to make Katrina respect him, he nevertheless ultimately assisted her in her case even as he was trying to make a fool of her.
Pet the Dog: He has his moments, though they're usually take a while to happen and they're often for selfish reasons. Which makes the moments when he's sincere even more surprising, at least to everyone but himself.
Took a Level in Kindness: While being basically Mike's and Harvey's antagonist at the beginning of the series (when the stakes weren't that high yet), he was shown to be very loyal towards the people he respects towards the end of season two.
Weaksauce Weakness: Louis will not give in for anyone or anything. Except American Ballet Theatre tickets.
The Atoner: Jessica sees herself as this. Her sin was trusting Daniel Hardman nearly blindly. This almost brought the firm she helped build to ruin five years ago. And with her as one of the scapegoats.
Alpha Bitch: Her default mode with most people other than Louis.
Catch Phrase: Doesn't have one herself, but she's apparently a fan of "You just got Litt up!". Going so far as to trademark it and get it printed on a mug in order to cheer Louis up.
Defeat Means Friendship: Just as Harvey wanted 'another him', Katrina ultimately wins Louis' position as his personal associate by the fact that she went to war with Louis (and almost won), among other things. He appreciated the fact that she gave him respect and treated him as a threat.
Establishing Character Moment: Gets a job at Pearson & Hardman by essentially blackmailing Harvey - he'd get a win, she'd get a job. Subsequently, picks a fight with Mike in order to try and take his spot and ends up with Louis.
The Foil: What Mike is to Harvey, Katrina is to Louis. She shares Louis' hyper-competitive streak, his killer instinct, his penchant for trying to win respect through intimidation, fear, and humiliation. And as with Mike to Harvey, she also shares Louis' passion for the arts, his pool of references and hobbies, and respects/looks up to him as a mentor.
Good Hair, Evil Hair: He sports a cop mustache in season three and the ten years ago flashbacks. Not in season one.
I Did What I Had to Do: He's infamous for burying evidence in order to incriminate people he knows are guilty.
"I Know You're in There Somewhere" Fight: Harvey tries to pull this during Ava Hassington's murder trial, since Dennis used to be all about "putting the bad guy behind bars" no matter what, and Ava is, against all odds, innocent.