Guy joins as a senior creative. He has worked at Dare where he was on the Aviva and Barclays accounts, and at Saatchi & Saatchi, where he was on the Toyota business.
Drury will be a creative at We Are Social. She was previously a creative at DigitasLBi where she worked on the Coca-Cola, Nestle and Carlsberg accounts.
The pair will report to Graham Jenks and James Nester, the UK creative directors at We Are Social. They will be work on the Evian, First Direct, Heinz, Google and HSBC accounts.
Jim Coleman, the managing director at We Are Social, said: "Our creative team has gone from strength to strength over the past couple of years, and Matt and Hannah will add yet more energy, experience and first class creative and social thinking to the department."