Publicis London has appointed Bronwyn Sweeney and Loren Cook as global creative directors, to strengthen the creative leadership of CCO, Noël Bunting. The appointments are new roles for the agency and follow a strong year 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, with 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 that 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. The New Zealand native has worked previously at Neverland and Droga5 in London, as well as Clemenger BBDO and Ogilvy in Auckland.
Bron Sweeney commented, “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 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 stated, “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.”
Cover image l-r: Brownyn Sweeney & Loren Cook






