Snoopy is a fictional character in the long-running comic strip Peanuts, by Charles M. Schulz. Snoopy is Charlie Brown's pet. Snoopy began his life in the strip as a fairly conventional dog, but eventually evolved into perhaps the strip's most dynamic character—and among the most recognizable comic characters in the world. The original drawings of Snoopy were "slightly patterned" after Spike, one of Schulz's childhood dogs.
Snoopy, whose fictional birthday has been established as October 2, made his first appearance in the strip of October 4, 1950, two days after the strip premiered. He was first identified by name on November 10. Schulz was originally going to call him "Sniffy" (as described in the 25th anniversary book), until he discovered that name was used in a different comic strip. He changed it to "Snoopy" after remembering that his late mother Dena Schulz had commented that if their family were ever to acquire a third dog, it should be called Snoopy, an affectionate term in Norwegian (the actual term is "Snuppa")
Snoopy was a silent character for the first two years of his existence, but on May 27, 1952 he verbalized his thoughts to readers for the first time in a thought balloon; Schulz would utilize this device for nearly all of the character's appearances in the strip thereafter. At first, Snoopy acted as a normal dog, and would only think in simple one-word phrases (such as "FOOD!"), but then became more articulate.
In addition to Snoopy's ability to "speak" his thoughts to the reader, many of the human characters in Peanuts have the uncanny knack of reading his thoughts and responding to them. In the animated Peanuts films and television specials, Snoopy's thoughts are not verbalized; his moods are instead conveyed through growls, sobs, laughter, monosyllabic utterances such as "bleah," "hey," etc., as well as through pantomime. The only exceptions are in the animated adaptations of You're a Good Man, Charlie Brown and Snoopy!!! The Musical, in which Snoopy's thoughts are verbalized through voice overs (by Robert Towers and Cam Clarke, respectively). Animation producer Bill Meléndez voiced both Snoopy and (eventually) Woodstock in numerous television specials from 1965 to 2006. In Peanuts Motion Comics, Snoopy's thoughts appear onscreen as text in thought bubbles, without voice.