Racist messages are being posted on "Harry Potter" Web sites against the young Asian actress who will portray Harry's first love.

As well as vitriolic messages, fake pornographic images of 17-year-old Katie Leung have also begun circulating among fan sites, The Sun reported Monday.

"It's frightening -- I can't make sense of it," her Scottish father told the newspaper. "Katie has seen these sites too. It's a great pressure on her."

She will play the role of Cho Chang in the upcoming "Harry Potter And The Goblet Of Fire," which sits very well with the film's 15-year-old protagonist, actor Daniel Radcliffe.

"She's very pretty and cool," Radcliffe said.