Snowy the Dog initially found fame as "Lassie", the heroic collie that would regularly guide blind orphans through the snow, back home to safety. Subsequently, Lassie became a famous crime-fighting dog and was responsible for the downfall of a number of underworld gangs and crime syndicates.
After the Mafia assigned a hit-man to assassinate the canine crime-fighter, Lassie entered the Witness Protection Programme, and with the assistance of a bottle of peroxide, she metamorphised into Snowy, the Peroxide Pooch Pal of Tintin.