Don LaFontaine - The voice of Fox commercials
Double entendre - Phrase with two different meanings
Epenthesis - Inserting a syllable into a word, such as Yogi Bear:  "pic-a-nic basket" and Homer Simpson:  "saxo-ma-phone"
Hal Douglas - "The" voice of movie trailers
Jesus H. Christ - 'It is often stated, jokingly, that the H stands for "Harold" or "Howard", as in "Our Father, who art in Heaven, HAROLD be thy name" (supposedly a child's mispronunciation of "Hallowed" in the Lord's Prayer).'
List of lists at Wikipedia
List of Simpsons Episodes