Publicis London appoints Global Creative Director duo

Publicis London has appointed Bronwyn Sweeney and Loren Cook as Global Creative Directors, strengthening Chief Creative Officer Noël Bunting’s creative leadership team.

The pair will support Bunting in shaping the agency’s global creative output and will work across Publicis London’s variety of international accounts.

The appointments are new roles for the agency and follow a strong year of form for Publicis London in 2025, in which the agency welcomed new clients including Electrolux, Foster’s and Marriott Bonvoy. Last month, the agency launched La Porte, a new initiative to support internationally minded junior creative talent.

Creative partners since 2016, Sweeney and Cook join Publicis London after almost a decade at MullenLowe, where they delivered culturally resonant work for brands such as Ferrero, Bupa and Unilever. Their work for Persil, ‘Wash Away the Taboo’, won multiple international awards, including a Cannes Lion, for its intimate portrayal of menstruation which challenged longstanding stigmas around periods. In 2024, they were named Team of the Year at Campaign’s Agency of the Year Awards.

Sweeney is also a stand-up comedian who has performed at Edinburgh Fringe Festival, Comedy Central Live and is a regular on the London comedy circuit.

Publicis London has also hired Liam Crerar as Senior Creative. Hailing from New Zealand, Crerar has previously worked at Neverland and Droga5 in London, and Clemenger BBDO and Ogilvy in Auckland.

Bron Sweeney, Global Creative Director, Publicis London, said: “Publicis London feels ambitious, down-to-earth and creatively driven, so is a great cultural fit for us. The agency’s campaigns demonstrate everything global work should be – exciting and emotionally engaging. We can’t wait to get stuck in.”

Loren Cook, Global Creative Director, Publicis London, added: “We have always thrived in environments where creativity and kindness go hand in hand. Publicis London is full of fun, talented people who care about the work and about each other, which makes it a brilliant place for us to be, to create ideas that will resonate worldwide.”

Noël Bunting, Chief Creative Officer, Publicis London, said: “Bron, Loren and Liam are outstanding creatives. Their work is thoughtful, ambitious and has shown lasting impact. Their global experience and outlook make them all a natural fit for Publicis London, and I’m delighted to watch how their ideas will take shape and move the world.”

Source: Publicis London

  Agency, Appointment, Bronwyn Sweeney, Global Creative Director, Loren Cook, Publicis London