Starting in May, he will initially work on the global Johnny Walker account, but is also set to work across the agency's client list.
Hooper-Greenhill started out as a planner at Leagas Delaney in 1999. He also worked at DFGW for a year before joining TBWA\London in 2001. As a planning partner, he worked on accounts such as Scottish Courage, Abbey and Eurostar. He quit TBWA at the end of last year to found Ben Mark Orlando with Ben Langdon and Mark Wnek.
The agency disintegrated in March, when Langdon took the UK group chairman role at Euro RSCG London.
Hooper-Greenhill said: "In talking to agencies (I found) there are issues the industry faces and BBH was addressing these most fluently, while others are struggling. Most will recognise that BBH is among the best agencies in the world - so who wouldn't want to work there?"
Guy Murphy, the head of planning at BBH, added: "We're always looking for the best talent. In particular, Orlando's view of modern communications is similar to ours and where we want to go. He will help us become a more creative communications planning department."
Wnek added: "All the agencies in town have talked to Orlando and BBH has been very lucky to get him."
The headhunting consultancy Stolkin & Partners handled the appointment.