"There’s always a chance, Doctor, as long as one can think."
Voiced by: Barrie Ingham
Adorkable: Basil, of all people, is this after Olivia's My Parents Are Dead moment. He gets very awkward and tongue-tied before snapping back to his usual self. Also the scene where he's awkwardly trying to cheer up Dawson. "I say...Dawson, old chap?" with a nervous smile.
Bad Boss: He's generally affable towards his minions, but when one of his flunkies gets drunk and calls him a rat, he promptly feeds said minion to the cat, and threatens to do the same to his other minions unless they continue with his Villain Song.
Berserk Button: He despises being called a rat, even though he technically is one.
Big Bad: He's based off of Professor Moriarty, after all.
Boomerang Bigot: He hates rats despite being one himself and tries to pass for a "big mouse."
Bond Villain Stupidity: Justified. He explains that he did plan on staying and watching as his latest Death Trap did its work, but since Basil and co. showed up 15 minutes later than he planned, he doesn't have time to stay, and so he rigs a camera to capture Basil's dying moment instead.
Card-Carrying Villain: Interestingly enough, his minions enjoy working for him because of this. And of course, he's also voiced by Vincent Price.
Child Hater: He's drowned an unspecified number of orphans, planned to eliminate orphans after becoming a king, and he's not nice towards Olivia. At all.
Dangerously Genre Savvy: When Ratigan learns that Basil is on the case, he realizes that it is inevitable that the great detective will eventually track him to his lair, so he sets a trap for him there. He also sets up a decoy trap in the bar that fronts his hideout so that Basil will easily avoid it and be lulled into a false sense of security.
Faux Affably Evil: He comes off as rather cheerful and pleasant, especially when compared to Basil (who can be a bit of a smug Jerk Ass). However, he's also an evil criminal genius who's perfectly willing to threaten a child in order to get what he wants.
For the Evulz: He recalls that it was a "delightful dilemma" trying to decide on how to kill Basil.
Genius Bruiser: He's an evil genius...but is also strong enough to lift up Hiram with one finger and trounce Basil in a one-on-one fight.
Narcissist: Perhaps one of the best examples in Disney canon, down the over-the-top melodramatics.
Nice Hat: Like Basil, he wears a hat, although in his case he wears a top hat.
No-Holds-Barred Beatdown: Towards the end of the movie, Ratigan mercilessly attacks Basil while shouting "There's no escape this time, Basil!" That Ratigan is usually more friendly than that only makes his suddenly vicious attack feel even more intense. Memorable enough to provide the page image for a while.
Would Hurt a Child: He has Olivia kidnapped and threatens to kill her in order to make her father cooperate, and during the climax of the film, he kicks her into Big Ben's gears to be crushed. Basil saves her Just in Time.