Zig-Zag is the only fictional character in the British Beach Boys, portrayed a puppet, - he made his television début on Radio in The Den and later appeared on Channel 4's The Big Breakfast and on MTV Europe.

Apparently an extraterrestrial twin (born on February 29) from the Planet Zog, Zig and Zag visited Ireland, decided to stay and were adopted by Ian Dempsey (and later re-adopted by Ray D'Arcy). They brought an alien dog called Zuppy with them.

Zig (short for Zigmund) is beige (although he claimed to be fawn) with red "zogabongs" (pom-pom antennae) and a tuft of green hair, and Zag is purple with green spots and yellow zogabongs and dreadlocks.

Zag was portrayed as the more intelligent older brother, a lecherous lady-killer who claimed to fly every weekend to Big Breakfast on Channel 4, then eventually left The Den to work on the show exclusively. On this, he acted as interviewers and were slightly less restrained with their language and actions. During this time, they also starred in a series of adverts for Yoplait yogurts. They continued to release comic books although with a much more adult theme. They now sing the high bits in the British Beach Boys.