Ron Weasley should have fiery red hair, blue eyes, freckles and a tall and thin figure. Rupert is stronger and shorter, with strawberry blond hair, no freckles and a wide nose.
Hermione Granger should have a bushy brown hair, brown eyes and front teeth, which she pulled out at the age of 14 (in the goblet of fire). Emma's face looks good (people say she is beautiful, but judging from the Christmas party, Hermione already has a beautiful face-the problem is her hair). Emma's hair is either too smooth, too beautifully curled or too straight. This only happens in the first movie. Emma has no front teeth.
Neville longbottom should be blonde, with a round face and a little fat. Matthew looks good. He is suitable for this role most of the time, except that his hair is dark brown instead of blond.
Ginny Weasley should have red hair, brown eyes, freckles and short stature. Bonnie's hair is red, but not as red as tomatoes. Her eyes are blue, not brown. Bonnie is taller than Ginny, too. Finally, Bonnie is a lovely and beautiful girl in all kinds of nature, but people expect Ginny's appearance to be more obvious, "in your face". If they use makeup to highlight Bonnie's beauty, she may be a good Ginny. But I don't think she has so many freckles. )
Nymphadora tonks is regarded as a young witch with pale heart-shaped face, short (usually) pink hair and shiny black eyes. She looks younger than her age in a tight shirt. Tonks in the movie is not like this. First of all, where is the short pink hair? Where's your cute little bubble face? The actress (although she is very young) looks a little old and too serious, lacking Tonks' bright and colorful appearance. And crazy weird sisters' t-shirts and ripped jeans?
Fleur Delacour is regarded as a very beautiful girl with long silvery white hair, blue eyes and neat white teeth. In the movie, Furong was played by a very beautiful actress, but I imagined that Furong was more beautiful than her.
Bill weasley should be a cool-looking person with long fiery red hair, blue eyes and freckles. The movie Bill has strawberry blond hair, no freckles and no clothes of rock stars. Personally, I don't think the movie Bill looks cool enough. Bill is a handsome boy who attracts lotus flowers-he should be a handsome boy.
Sirius Black should be a handsome guy with long black hair and gray eyes. Gary Oldman is an excellent actor, but he doesn't look like Sirius. The movie Sirius looks older than Sirius in the book. Sirius is a young man in his thirties.
Sirius just came out of Azkaban.
Remus lupin should be about 35 years old, looking young and tired. Remus in the movie does have light brown hair and wears a shabby robe like Remus in the book, but he still looks a little too old. Besides, people don't like the weird beard in the third movie.
Lily Evans Potter should be a young woman with crimson hair and green eyes. The movie Lily is lovely but very old. She looks like Lily lived to be forty or fifty years old.