The Junior detective series TKKG is a series of radio dramas and novels created by Stefan Wolf.
The characters and their creator
In all German-speaking countries they are the most commercially successful series of novels of their type, apart from The Three Investigators. They call themselves TKKG, after the initials of their names: Tarzan (later renamed in Tim, because "Tarzan" is a trademark), Karl, Doughnut (in German , in Australia called "Klumpling") and Gab(b)y; an unofficial fifth member is Gaby's Cocker Spaniel, called Oskar. Since 1979 they continually solve all sorts of crimes, from thefts and robberies to kidnappings and terrorism.The books were written by Rolf Kalmuczak, under his nom de plume Stefan Wolf. In June 2004 TKKG changed their publisher from Pelican to CBJ - They published volumes 07, 14, 54, 77 and 84 in January 2005 as a new edition with the CBJ brand name.
Tim
Peter Timotheus Carsten, which is his full name (just called Tim, which is short for Timoth
Source:
http://en.wikipedia.org/wiki/TKKG