The agency will produce creative for the company's launch later this year. MGM announced its intention to move into the UK market in January as part of a bid to bring gambling into the mainstream. It is being licensed in the Isle of Man by the Isle of Man Parliament.
Oscar Nieboer, who was named the vice-president of marketing of MGM Mirage on Wednesday, said: "The agency is devising the strategic approach, brand positioning and creative presentation of the brand."
The account will be run by Steve Vranakis, who joined VCCP from FCB San Francisco earlier this summer to head VCCP Online.
Media will be handled by Carat, which won the account at the beginning of the year.