Jekyll

Jekyll and Hyde

A person whose personality drastically changes between good and bad. A reference to the main character in the book Strange Case of Dr. Jekyll and Mr. Hyde by Robert Louis Stevenson. Ever since Kyle became a teenager, he's turned into a real Jekyll and Hyde, and it's impossible to anticipate his mood at any given time.
See also: and, Hyde, Jekyll
Farlex Dictionary of Idioms.

Jekyll and Hyde

someone with both an evil and a good personality. (From the novel The Strange Case of Dr. Jekyll and Mr. Hyde by Robert Louis Stevenson.) Bill thinks Mary is so soft and gentle, but she can be very cruel—she is a real Jekyll and Hyde. Jane doesn't know that Fred is a Jekyll and Hyde. She sees him only when he is being kind and generous, but he can be very cruel.
See also: and, Hyde, Jekyll
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

Jekyll and Hyde

A personality alternating between good and evil behavior, as in You never know whether Bob will be a Jekyll or a Hyde. This expression comes from Robert Louis Stevenson's The Strange Case of Dr. Jekyll and Mr. Hyde (1886). Also see lead a double life.
See also: and, Hyde, Jekyll
The American Heritage® Dictionary of Idioms by Christine Ammer.

Jekyll and Hyde

a person alternately displaying opposing good and evil personalities.
The Strange Case of Dr Jekyll and Mr Hyde ( 1886 ) is a novel by Robert Louis Stevenson , in which the physician Jekyll, in order to indulge his evil instincts, uses a drug to create the persona of Hyde, which at first he can assume at will but which gradually gains control of him.
See also: and, Hyde, Jekyll
Farlex Partner Idioms Dictionary

a ˌJekyll and ˈHyde

a person with two separate personalities or ways of behaving, one good, pleasant, etc. and one evil, unpleasant, etc: He’s a real Jekyll and Hyde. At home he shouts at his wife and children all the time; at work he’s always charming and friendly.This comes from a story by Robert Louis Stevenson, Dr Jekyll and Mr Hyde, in which Dr Jekyll takes a drug which separates the good and bad sides of his personality into two characters. All the negative aspects go into the character of Mr Hyde.
See also: and, Hyde, Jekyll
Farlex Partner Idioms Dictionary

Jekyll and Hyde

An individual who has two completely different sides, one very good and the other evil. The term comes from Robert Louis Stevenson’s The Strange Case of Dr. Jekyll and Mr. Hyde (1886), in which one character can switch from the good Dr. Jekyll to the evil Mr. Hyde by taking a drug. Leslie Purnell Davies defined it in The Shadow Before (1971), “We are all a mixture of good and evil, Jekyll and Hyde if you like.”
See also: and, Hyde, Jekyll
The Dictionary of Clichés by Christine Ammer
See also:
  • a Jekyll and Hyde
  • Hyde
  • Jekyll and Hyde
  • man is known by the company he keeps
  • a man is judged by the company he keeps
  • a man is known by the company he keeps
  • metamorphose into
  • a good looker
  • good looker
  • chip off the old block
References in periodicals archive
Located at 101 Ocean Way, Home2 Suites by Hilton Jekyll Island offers guests convenient access to shopping centers including Jekyll Island Convention Center and the Village Green and is just across the street from The Corsair Beach Park, Jekyll Island Beach and the Atlantic Ocean.
Dom Moccia played the extremely demanding dual role of the tormented Dr Henry Jekyll and the terrifying Edward Hyde with absolute passion and creativity.
The addition of named female parts gave the piece a more delicate balance but the attempt at a back story to explain Jekyll's downward spiral into monster was an unneccessary appendage.
However, his methods are less than ethical, and when a close friend and colleague threatens to expose and destroy his work, Jekyll is forced to experiment on himself, whereupon something goes very wrong...
The Strange Case of Dr Jekyll and Mr Hyde was an immediate success and the first stage adaptation took place within a year of publication.
Inspired by Georgian pubs of years gone by, Jekyll & Hyde is a friendly British pub and proper city gastro that serves its welcomes warm, drinks cold and food at great value without compromising on quality or flavours.
Jekyll all come out of the portal, but Rumple slips through the other way to confront Mr.
The story unfolds in the 1930s London, where Dr Henry Jekyll (Tom Bateman), grandson of infamous Victorian scientist Dr Robert Jekyll, struggles with the split personality disorder he has inherited.
More split-personality thrills as Robert Jekyll (Tom Bateman, left) finds the cocoon of parasite-Jack.
More split-personality thrills as Jekyll (Tom Bateman, left) finds the cocoon of parasite-Jack.
Jekyll's Potion, The Jekyll & Hyde, Saturday, 9pm, free.
JEKYLL AND HYDE ITV, 7pm Old Jekyll's experiments begin to make perfect sense to Robert, and he attempts to track down the medication his grandfather used.
Jekyll and Hyde ITV Wales, 7pm Old Jekyll's experiments begin to make perfect sense to Robert, and he attempts to track down the medication his grandfather used.
PICK OF THE WEEK Jekyll & Hyde (ITV, tomorrow 6.30pm) FOLLOWING her departure from Coronation Street, Natalie Gumede's popped up in the likes of Doctor Who and Death In Paradise - but Jekyll & Hyde marks an opportunity to really pack a punch on the small screen.