[[folder:Sherlock Holmes]]
* {{Adorkable}}: He certainly has his moments, particularly around the Irregulars.
* BackFromTheDead
* BadassLongcoat
* CatchPhrase: "Eyes and brains!"
* CharacterDevelopment: Unfortunately, there is ''none'' regarding Holmes's return to life -- he gets nostalgic from time to time and he refuses to accept robo!Watson at first, but this is as far as it goes. One would think he'd have ''[[AngstWhatAngst some]]'' [[AngstWhatAngst issues]] after having ''died'' and then returning to life in a ''completely different century''.
** However, as mentioned above, he goes from rejecting Watson to embracing him wholeheartedly in the span of two episodes.
** Plus, his relationship with Beth develops subtly throughout the series.
* TheChessmaster
* DeadpanSnarker[=/=]GentlemanSnarker
* FatAndSkinny: The skinny to Watson's chunky physique.
* [[AFatherToHisMen A Father to His Irregulars]]
* FishOutOfTemporalWater: Not for long, though.
* GenreSavvy: To the point of reading up on ''Literature/{{Dracula}}'' when dealing with a vampire.
* TheHero: Becomes an action hero with the episodes following him on his investigations even when he's working alone.
* IncrediblyLamePun: Has an unfortunate propensity for these.
* InsufferableGenius: He's much nicer than he was [[Literature/SherlockHolmes in his youth]], but he still has his moments.
* ItsPersonal: If it's [[BerserkButton Watson]], absolutely. Lestrade quickly reaches this status, as well.
* JumpedAtTheCall: Threw himself right into his first case.
* TheLeader
* MasterOfDisguise[=/=]ImpersonationGambit: So much so that he can [[BriefAccentImitation fake different American accents]]. Of course, [[LatexPerfection elastomasks]] also help, especially as many of his disguises are real people.
* NotSoStoic
* OlderThanTheyLook
* TheSpock
* TookALevelInKindness: Holmes is noticeably softer in the show, when compared to his younger self in the Sherlockian Canon.

[[folder:Inspector Beth Lestrade]]
* ActionGirl: She's quite a formidable woman, not above kicking in doors or taking down suspects herself, and handy with an ionizer besides.
* BadassInDistress: In spite of her being possibly the more physically formidable and ''definitely'' the more aggressive of the two, she does occasionally end up needing to be saved by Holmes.
* BrainwashedAndCrazy: Done once [[spoiler: with a puzzle box laced with {{Nanomachines}}.]]
* CowboyCop: Naturally, as a foil to Grayson.
* DestructiveSaviour: Grayson reads a laundry ListOfTransgressions inflicted in the process of catching Fenwick in the first episode, and it's implied it isn't the first time her enthusiasm for catching criminals has come at a price.
* DrivesLikeCrazy: Demonstrated a fair number of times over the course of the show, enough to be gently snarked on the topic by Holmes.
* HotBlooded: Lestrade is quite unrestrained in her emotions, as a contrast to the calm and genteel Holmes.
* InspectorLestrade: Literally in name, and like her ancestor she starts off making some hot-headed presumptions in cases as to who is guilty of what. That tendency smooths out over the course of the show.
* TheKnightsWhoSaySquee: She is both an officer of the law and a devoted admirer of Holmes' talent for outwitting criminals. Enough to suggest revivification to a ''highly'' skeptical Chief Grayson.
* LegacyCharacter: Of a sort. She is directly related to the original Inspector Lestrade and assumes a similar role to the first as Holmes' point of contact with Scotland Yard and actual figure of authority in a case. Her relationship is much less vitriolic than the original relationship between Holmes and Lestrade.
* TriggerHappy: Lestrade draws her ionizer at the earliest opportunity in many cases. Fortunately she tends to holds her fire if innocents are in the way. When she only has to worry about a suspect, she doesn't hesitate to fire.
* TurnInYourBadge: Threatens to do this to Grayson and take her story of a revivified Sherlock Holmes to the news to make New Scotland Yard look like they were shirking their duty to help the public by ignoring potential assistance.
* ScrewTheRulesImDoingWhatsRight: Her stance on New Scotland Yard's limitations, and Grayson's inflexibility especially.


* {{Adorkable}}
* BadassMoustache: As well as large muttonchops.
* BadassLongcoat: He is commonly seen wearing a large greatcoat that covers all but his feet and forearms.
* TheBigGuy: Largest of the three protagonists and the strongest due to being a robot.
* DoAnythingRobot: He seems to always have just the right scanning function or tool for the job at hand.
* EverythingSensor
* FatAndSkinny: The fat to Holmes' skinny. Explicitly stated in-universe by Holmes as sharing a somewhat potbellied appearance with his namesake, the original John Watson.
* NiceHat: A bowler hat.
* RidiculouslyHumanRobot: In at least one instance, he coughs due to a cloud of smoke. The robot below the elasto-mask has neither mouth nor lungs.
* RobotBuddy: Naturally.
* RobotMe: In an interesting variation, the robot consciously ''chose'' to model himself on Holmes's old friend.
* SideKick
* SuperStrength: Comes with being a robot.
* TheWatson: Goes back and forth on this; occasionally he asks questions to give Holmes a chance to reveal what he has discovered, but will also bounce his own deductions and inferences off Holmes.
* WhatMeasureIsANonHuman: "The Fall And Rise of Sherlock Holmes" and "The Crime Machine" let Holmes explore his relationship with Watson. "The Five Orange Pips" revolves around this trope.

[[folder:Chief Inspector Grayson]]
* ArbitrarySkepticism: No matter how many times he sees Sherlock Holmes crack a case, pick up on facts no one else noticed, and solve crimes, he constantly refuses to believe that Holmes is any help at all.
* ByTheBookCop[=/=]LawfulStupid: Grayson straddles the line of this due to his unwillingness to deviate from police procedure for even a moment.
* DaChief: Of course.
* FatIdiot: His portrayal, albeit probably not intentionally so by the writers. Comes across as this, as the result of his combination of husky build (with an obvious paunch) and his incompetence in the course of fighting crime, including once being Moriarty's UnwittingPawn to provide an alibi for a crime. He was also introduced getting an elasto-mask of an old woman stuck on his head.
* LargeAndInCharge: Physically a large man, and commands New Scotland Yard.
* ObstructiveBureaucrat: His adherence to the rules and declarations of limits hinder investigations of cases more than helps them.
* PoliceAreUseless: He may mean well in his lawfulness, but is chronically unhelpful.
* TurnInYourBadge: Does this at least once to Lestrade. It doesn't take.

!!The Irregulars

* BaldBlackLeaderGuy: Of the Irregulars.
* HiddenDepths[=/=]SmarterThanYouLook: In spite of his somewhat thuggish mode of dress, he winds up demonstrating enough talent and astuteness at their first meeting to impress Holmes.
* ICouldaBeenAContender: Once a talented football (soccer) player until an injury put an end to his sport ambitions. He has since taken up boxing.
* PhotographicMemory: According to a poster of the characters.
* TheSouthpaw: Holmes pegs him as a lefty in their first meeting, which can be beneficial for an amateur boxer.
* SleevesAreForWimps: Always seen in a sleeveless duster.
* TheYardies: Black and an implied juvenile delinquent, albeit a LighterAndSofter version to the point of general harmlessness.


* BlackMarket: Implied to deal with this, as she's a con artist and a fence.
* [[ConMan Con Girl]]: Specifically, LittleMissConArtist.
* TroublingUnchildlikeBehavior: There is something quite amiss in a twelve year old girl who knows where to sell varieties stolen goods of high value.
* YoungerThanTheyLook: According to the character poster, she's ''twelve!''


* ChildProdigy: According to the character poster, a computer and mathematics genius.
* CoolMask: Always seen with a blue mask over his nose and mouth.
* GeniusCripple: Math wizard, brilliant hacker, always seen in a hovering wheelchair analogue.
* GogglesDoNothing
* HollywoodCyborg: He's never seen out of his hoverchair, and we've never even seen him below the waist. The size of his chair versus Tennyson's upper body implies that he may not ''have'' legs.
* IntelligibleUnintelligible: Speaks in beeps, warbles, and musical tones, but is understood by Holmes and the Irregulars.
* PlayfulHacker: Can break into computers easily, but is never malicious about it.
* SuperWheelchair: It hovers and is loaded with computer tech for hacking purposes.
* YoungerThanTheyLook: The youngest of the Irregulars, at ''eleven.''


[[folder:Professor James Moriarty]]
* AffablyEvil: Can be a gentleman and quite casually so. It's almost a little creepy, as befits the original character.
** In his initial appearance, this leads to a IKissYourHand moment with Beth, who is [[{{Understatement}} not amused]].
* BadassBaritone[=/=]EvilSoundsDeep
* BadassLongcoat: Favors a cobalt-blue trenchcoat while doing his own dirty work.
* BigBad[=/=]TheManBehindTheMan: There are very few episodes that ''don't'' feature Moriarty as the mastermind behind the scenes.
* TheChessmaster
* DeadpanSnarker[=/=]TallDarkAndSnarky
* DiabolicalMastermind[=/=]EvilGenius
* EvenEvilHasStandards: According to Moriarty in "Five Orange Pips," he doesn't want people getting hurt as he takes over the world. To be fair, he generally sticks to this rule, with the exception of "Baskerville" early on in the game.
* EvilGenius: Positively brilliant, considered Holmes' equal, and as dedicated to committing crimes as Holmes is to solving them.
* EvilLaugh
* HiddenVillain: For the first couple of episodes.
* HoistByHisOwnPetard: The way he tends to get his due.
* KnightOfCerebus
* LargeHam: "But of course!"
* MusclesAreMeaningless: Moriarty’s impressive build ''never'' stops the sleeker Holmes from mopping the floor with him.
* PoliticallyIncorrectVillain
* SkunkStripe: Has a huge one in his hair.
* TheStarscream: He accomplishes this offscreen. Originally cloned to be Fenwick's accomplice, he upstages Fenwick as the true criminal mastermind.
* TookALevelInBadass: This is a man who ''enjoys'' getting his hands dirty and enjoys sparring verbally and physically with Holmes, quite unlike the reclusive intellectual of the Canon.
** It does make sense, though, as this Moriarty is a clone of the original created by Fenwick, who was supposed to serve as his [[TheDragon Dragon]]. Presumably, there was some manipulation involved to make him more suited to the task.
* WeWillMeetAgain

[[folder:Dr. Martin Fenwick]]

* DemotedToDragon: After his clone of Moriarty upstages him
* TheDragon: To Moriarty.
* FrenchJerk: Stated to be a native of Neo-Paris.
* {{Gonk}}: He has the most blatantly ''ugly'' mug in the series, almost to the point of seeming inhuman--and this is a series where both [[BeastMan a massive cat-man]] and [[SnakePeople a snakeman]] have shown up in episodes!
* OurGhoulsAreCreepier: His visual effect due to his pale skin, mismatched eyes, upturned nose, bald head, and massive underbite.
* JustAStupidAccent: Speaks grammatically correct English with a terrible French accent. Holmes once catches him because of his inability to hide his distinctive accent.
* PoirotSpeak: Occasionally peppers his speech with random stereotypical French phrases.
* SssssnakeTalk: While he lacks the reptile motif, his accent and inability to enunciate leads to this.