Lucky Luke is a Franco-Belgian comics series created by Belgian cartoonist, Maurice De Bevere better known as Morris, the original artist, and saw its best period written by René Goscinny. Set in the American Old West, it stars the titular character, Lucky Luke, the cowboy known to shoot faster than his shadow.
Along with The Adventures of Tintin and Asterix, Lucky Luke is one of the most popular and best-selling comic-book series in continental Europe. Popular in Canada, about half of the series' adventures have been translated into English. Lucky Luke comics have been translated into 23 languages, including many European languages, some African and Asian languages.
Source: Wikipedia, "Lucky Luke," available under the CC-BY-SA License.