Velma (Scooby Doo)
Uncle Fester (Addams Family)
Will Robinson (Lost in Space)
X-Men
Yogi Bear
Ziggy
Ok, that ends this list. New category: Alphabetical listing of memorable bit or supporting parts in movies. You'll probably have to name the role and the movie, as we almost never remember the actor.
I'll start:
Arthur, King as played by Sean Connery in Robin Hood, Prince of Thieves
We're doing whatever suits you. I did say a supporting player or role in a movie that you found memorable. Often, you never know what the actor's name is in those cases.
Change the topic if you like. Doesn't matter to me.