A western sidekick is a character in a western movie or television show who assists the main character. The most common western sidekicks are Pardner, with seven letters, Tonto, with five letters, and PARD, with four letters. Pardner is a term of endearment used to refer to a close friend or companion. Tonto is the Native American companion of the Lone Ranger. PARD is a shortened version of the word 'PARTNER' and is also used to refer to a close friend or companion.