You don't remember "Willy" (Robert Englund... AKA Freddy Krueger) Picking up a mouse by the tail, looking at it and saying the lines "mousey, mousey!" and then swallowing it whole?
Possible spoilers lie within if you haven't see the original yet!Hate to break it to you Orion, but that particular scene is not one that Englund was in. The scene you refer to features a young blond haired visitor, perhaps Brian (Robin's soon to be boyfriend/lover at the hands of the evil Diana) who gets in trouble after a night of drinking with Daniel, a earthling of Jewish descent who aspires to be great among the "Visitor Youth League" (seems that's what it was called). At any rate, Brian is wondering around the dumpsters calling "Here mousey" as you stated, the whole while a wino under the nearest bridge is watching. He finally finds the mouse, unhinges his jaw, and swallows it whole...at which point the wino near about loses the whole bottle.
No, the classic scenes with Willy involve him working at the plant with Caleb's Dad (who is black) and a young earth woman whose name I forget...in fact, these plant scenes are the first time we meet Englund's alien. The earth woman finds Willy wandering around the plant, and when he approaches her, he explains "Excuse me. I am just." She say "You are just?", to which he replies, "yes, just." For a while, he cannot make her understand, because his command of our language is not good yet...but finally in his frustration, explains by pointing to a map that he is supposed to be there, at which point the lady responds, "Oh, LOST!" and he answers "Yes! Lost! I am lost!"
He winds up, as I said, working with Caleb's dad, a black man - who already afraid of the Mexicans coming in- now fears for his job and losing it to these visitors. However, Willy saves his life when a vat of freezing gas explodes, trapping several workers...it is here, however, that Willy's true identity is almost revealed as the gas causes the fake skin over the reptile's hand to bubble and nearly burst open - Willy is wisked quickly off to a visitor medical center on a nearby ship....and that is the last we see of him for a while. I just remembered the chick's name that befriends him in the film also, I think...her name was Harmony, if memory serves me correctly. Willy will reappear and become one of the resistance movement later on. I remember when I learned it was "Willy" under all that goop playing Freddy Krueger....what a change of direction!
How badly am I a V Junkie? That "hot babe" mentioned earlier swallowing the mouse was Diana, the visitor's head scientist and second in command only to John. She was played to the hilt by Jane Badler. Michael Ironside played Ham Tyler, the "Clint Eastwood" wannabe of the resistance, that befriends Mike (Marc Singer) and Julie (Faye Grant). Actually, Mike and Ham aren't friends; we'll learn later that....oh well, enough already big mouth.

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EDIT: At any rate, the new series looks very promising. Will be tuned in to watch, just as we were in the 80s. We used to have "V" parties every Friday night at our house...a friend of mine, young lady who I was interested in at the time was over one night and watched with us....and she became so addicted to the show that she was back every Friday night for the length of the series.