John McClane Sr. is a fictional character and the protagonist of the Die Hard film series, based on Joe Leland from Roderick Thorp's action novel Nothing Lasts Forever. McClane was portrayed in all five films by actor Bruce Willis, and he is known for his sardonic one-liners, including the famous catchphrase in every Die Hard film: "Yippee-ki-yay, motherfucker".
Source : Wikipedia
