Harry Potter author JK Rowling and actress Sienna Miller will give evidence about their experiences of media intrusion to the Leveson Inquiry in London today.
The inquiry into press standards will also hear from former Formula 1 chief Max Mosley, who won privacy damages over a News of the World story claiming he took part in a “Nazi orgy”.
The hearing will begin with a closed session of testimony from an unnamed man referred to as “HJK”, whose phone was allegedly hacked after he began a relationship with a well-known figure.
Members of the public and journalists will be excluded from the hearing room at the Royal Courts of Justice in London during his appearance.
There will be no audio or video feed to the separate overspill annexe or the inquiry’s website, but a transcript of HJK’s evidence will be posted online later.
He will be followed by Miller, whose films include Layer Cake, Alfie and Stardust, lawyer Mark Thomson, Mosley and Rowling.
Rowling has previously complained about photographs being taken of her children.
Her characters in the Harry Potter series include an unscrupulous tabloid journalist called Rita Skeeter.
Rita, who first appeared in 2000’s Harry Potter And The Goblet of Fire and was played by Miranda Richardson in the films of the books, was famous for her Quick-Quotes Quill, a magical pen that automatically translates an interview into tabloidese.
Prime Minister David Cameron set up the Leveson Inquiry in July in response to revelations that the now-defunct News of the World commissioned a private detective to hack murdered schoolgirl Milly Dowler’s phone after she disappeared in 2002.
Kate McCann told the inquiry yesterday that she felt like “climbing into a hole and not coming out” when the News of the World printed her personal diary in September 2008.
She described feeling “totally violated” by the paper’s publication of the leaked journal, which she began after her daughter Madeleine disappeared on holiday in Portugal in 2007.
Mrs McCann and her husband Gerry, from Rothley, Leicestershire, also described how News of the World editor Colin Myler “beat them into submission” after they gave an interview to a rival publication.
Mr Myler was “irate” when he learned that they had spoken to Hello! magazine around the first anniversary of Madeleine’s disappearance to promote a Europe-wide alert system for missing children, the inquiry heard.
The couple said on other occasions they had to stop newspapers from publishing untrue stories, giving the example of a false claim that they had undergone IVF treatment to have another baby to “replace Madeleine”.
Lawyer Mark Lewis, who represents a number of phone-hacking victims, claimed yesterday that the illegal interception of voicemails was “much more widespread” than just the News of the World.
He told the inquiry that hacking the phones of celebrities and other people in the news was “too easy to do” for journalists.
The first part of the Leveson Inquiry is looking at the culture, practices and ethics of the press in general.
The second part, examining the extent of unlawful activities by journalists, will not begin until detectives have completed their investigation into alleged phone hacking and corrupt payments to police and any prosecutions have been concluded.