Carola Salisbury is a pseudonym of British author John Michael "Mike" Butterworth.

He was a comic book writer, best known for his comic strip The Rise and Fall of the Trigan Empire. Aside from his writing, Butterworth was a gifted editor and created a number of new papers for the firm including Playhour Pictures (soon after abbreviated to Playhour), Valentine and the teenage girls' magazine Honey.

In 1965, he became one of the main script writers for Ranger where he penned the sprawling science-fantasy The Rise and Fall of the Trigan Empire. After he turned to freelance, his first novel 'The Soundless Scream' appeared in 1967 followed over the next few years by a number of well-received crime novels which appeared under his full name. Butterworth also turned his hand to Gothic romance novels under the pen-name Carola Salisbury. - Wikipedia