In its current state, Windows 8 has a bit of a Jekyll and Hyde split personality.

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But despite his impressive resume, Wildhorn is a bit of a Jekyll and Hyde figure himself.

WSJ: Composer Frank Wildhorn bridges pop and Broadway

She's a Jekyll and Hyde character when it comes to Rebecca the athlete and Rebecca the person.

BBC: Sports Personality 10: Rebecca Adlington

Sometimes whispering, Miss Stobbart described how Moat had a "Jekyll and Hyde split personality" and could be violent and unpredictable.

BBC: Samantha Stobbart tells of Raoul Moat gun terror

Their convoluted Jekyll and Hyde quality has been so enduring that the reports have raised reasonable doubts about whether the institutions were even profitable.

WSJ: A Rally Built Atop Surprises, Mostly Bad

The three points only reinforced Burnley's Jekyll and Hyde nature so far this season with Owen Coyle's side now having won their four league games at home and losing their four away matches.

BBC: Burnley 2-1 Birmingham

But just when it seemed as if a difficult week was in danger of going further downhill, the Ospreys turned on the style - perfectly emphasising their Jekyll and Hyde nature in a microcosm of their inconsistencies this season.

BBC: Heineken Cup: Ospreys 29-17 Toulon

In Jekyll Copse and Hyde Copse.

NEWYORKER: Trench Names

He also performed stunts in dozens of features, including "Dr. Jekyll and Mr. Hyde" (1941) and "Walking Tall" (1973).

CNN: Showbuzz