Kat Arney

Kat Arney works as a science information officer for the charity Cancer Research UK in London, when she's not off playing the harp and the spoons. She completed her degree and PhD at Cambridge University, and did time in a lab next to Wormwood Scrubs prison before finally leaving research. Kat writes science articles for the Naked Scientists website and helps to present the Naked Scientists science Radio Show and podcast. She also presents and produces the Cancer Research UK podcast and writes for the charity’s Science Update blog. She also writes occasionally for online science magazine Lablit , plays in several bands, is a keen knitter, and apparently never sleeps! Read about her exploits on her aptly titled blog, "You Do Too Much.”

Sue Marchant

Sue Marchant is a BBC radio presenter for the eastern region. She hosts the Sue Marchant Show on weekday evenings across the eastern counties, and teams up with the Naked Scientists each Thursday to produce "Ask! The Naked Scientists", our interactive and wild science phone-in show and podcast. Sue's weaknesses, apart from an attraction to bottles of brightly-coloured hair dye, are furry creatures and fine wines. That said, we're still waiting for her to turn up to the studio with something for us to drink. We live (thirstily) in hope...

Helen Scales

Helen is a marine biologist based in Cambridge. She’s the one who talks about fish and the oceans a lot on the show – seems she has a thing about them. In her book, Poseidon’s Steed (published August 2009) she explores the lives of some of her most favourite fish, the ever-enchanting seahorses.

She studied for a PhD at Cambridge and has lived and dived in various corners of the tropics, researching rare coral reef fish. She is now a consultant working with conservation organizations on the international wildlife trade – fish especially – something she’s published scientific papers on. She also writes articles for the Naked Scientists website, Geographical magazine and National Geographic News. And when she’s not behind the microphone or working to save the world’s dwindling fish stocks, you might even spot her on the Argentine Tango dance floor. If you want to find out more visit her website HelenScales.com.

Chris Smith

Chris Smith is a doctor and a clinical lecturer in virology at Cambridge University. Deciding that medicine wasn't soaking up enough of his free time, Chris started the Naked Scientists radio show, podcast and website.

He presents the Naked Scientists and also makes weekly appearances on ABC Radio National, Australia, and on BBC Radio Five Live; he also fronts the Royal Society of Chemistry's Chemistry World podcast, and presents the Nature Podcast for the journal Nature. Now and then he also pops up on telly, usually when the feathers hit the fan during a bird flu outbreak.

In 2006 he published his first book, Naked Science, and also produced his first child, but not necessarily in that order! Now he's reaping the rewards that fatherhood brings - countless near death experiences triggered by daily viral infections generously donated by his daughter...

Ben Valsler

While teaching science in North East Thailand, Ben Valsler realised just how exciting and interesting communicating science could be. Taking the opportunity to produce and present the "English Hour" on Thai local radio, it dawned on him to combine the science with the radio, and he's never looked back.

A zoologist by training with a Master's degree in Science Communication, Ben's now busy producing & presenting the show and devising kitchen science experiments with Dave.

Never one to say "No" to an opportunity, Ben has also presented live science stage shows in South Africa, used science demos to tame halls full of rowdy teenagers (and even their teachers) and can often be found on the Naked Scientists Forum.