"i think there should be an alien on happy days. that would be funny." richie: oh, come in. henry: garry writes, mork from ork. all of a sudden head of casting comes down with a young man, very quiet, very shy, this young man, robin williams, picks up the script. and we start doing the scene. richie: fonz, it's that finger of his. he just points it once and wham bam, goodbye cunningham! henry winkler: and that was the last time i ever heard the script, the way it was written. mork: come along specimen. fonzi: uhh wait a minute. let me tell you something, you ain't taking my buddy here. you wanna rumble? mork: rumble? [sings] it is a [unintelligible] let's make it official. [makes noises] let me introduce the local celebrities [makes noises] henry winkler: it's like the soundstage 19,