Hoyle held a similar position at MSL and brings more than 20 years of experience when he joins the agency in May.
Hoyle has also held similar roles at Weber Shandwick and Fishburn, and developed campaigns for HSBC, First Direct, ESSO, EY, Butlins and Durex. His work has won multiple industry awards, most notably for the Bisto ‘Spare Chair Sunday’ campaign.
Milne arrives from BrandsL2Life, where she led the work for Moonpig, Virgin Media, Match.com, Groupon and Barclays.
Previously, Milne was at Mischief, working across Unilever, The Football Association and National Trust.
Hoyle and Milnes will work alongside existing Creative Director, Paul Valentine, as well as head of planning and strategy, Elly Kestenbaum, and head of client services, Natalie Neave.
Recently Tin Man has been awarded work by Direct Line Group and Thomas Cook Airlines. The agency also works with Barclays, Unilever, Plenty of Fish, FOX TV, The Institution of Engineering and Technology, NOWTV and Ferrero.
"This, our fifth year, is already shaping up to be our most exciting in terms of growth, and we’re ready for the energy and expertise that James and Hannah will bring," Tin Man founder Mandy Sharp said.
"James will work with Paul on building our creative content and production offering, as well as conjuring further creative magic for our clients. Hannah will be wrapping her arms around some of our cornerstone clients and leading them to achieve even greater results."