Sex and the City actress Kim Cattrall has appealed for information about her brother, who went missing from his home in Canada almost a week ago.

The actress used social media to ask for help, saying Christopher Cattrall had been reported missing from his home in Alberta since Tuesday. She said his keys, phone, and wallet were left on the table, the front door was unlocked, and his seven “beloved” dogs were unattended.

“This is not like Chris. He he would never leave his unlocked home without those items nor his 7 beloved dogs,” she wrote.

“Chris is 55 years old, 6 feet tall, 200 pounds, blue eyes, short brown hair, goatee, average build and usually wearing a waist length hooded winter coat with black gloves, blue jeans and calf high black winter boots.”

She added: “He’s a one of a kind brother. Help us bring him home safe. Please spread the world. Many thanks for reading this.”

Sarah Jessica Parker says she was heartbroken when she heard Kim Cattrall never considered them friends

The 61-year-old actress, probably best known for playing the character of Samantha Jones in the New York-based television series Sex and the City, used her Instagram, Facebook and Twitter pages to ask for help.

Kim Cattrall on sex and the stage Show all 22 1 /22 Kim Cattrall on sex and the stage Kim Cattrall on sex and the stage Kim Cattrall on sex and the stage Kim Cattrall attends the 'Sex And The City' premiere at Radio City Music Hall on 27 May 2008 in New York City. Getty Images Kim Cattrall on sex and the stage Kim Cattrall poses at the home of magazine publisher Jason Binn at the Hamptons Magazine 30th Anniversary party in South Hampton, New York, 24 May 2008. Getty Images Kim Cattrall on sex and the stage Sarah Jessica Parker and Kim Catrall arrive at the German premiere of 'Sex And The City' at the cinestar on 15 May, 2008 in Berlin. Getty Images Kim Cattrall on sex and the stage Sarah Jessica Parker, Kim Catrall, Cynthia Nixon and Kristin Davis arrive at the world premiere of 'Sex And The City' at the Odeon Leicester Square on 12 May, 2008 in London. Getty Images Kim Cattrall on sex and the stage Kim Cattrell arrives at the Laureus World Sports Awards at the Mariinsky Concert Hall on 18 February, 2008 in St.Petersburg, Russia. Getty Images Kim Cattrall on sex and the stage Mario Cantone and actress Kim Cattrall attend the opening night after party for 'Mario Cantone: Laugh Whore' at The Rainbow Room, 24 October, 2004. Getty Images Kim Cattrall on sex and the stage Kim Cattrall arrives at the HBO Emmy after party at the Pacific Design Center 21 September, 2003 in West Hollywood, California. Getty Images Kim Cattrall on sex and the stage Kim Cattrall attends HBO's 'Sex and the City' screening party 18 June, 2003 at the American Museum of Natural History in New York City. Getty Images Kim Cattrall on sex and the stage Sarah Jessica Parker, Kristin Davis and Kim Cattrell on the set of the hit HBO series 'Sex and the City' 17 June, 2003 in SoHo, New York City. Getty Images Kim Cattrall on sex and the stage Kim Cattrall poses with her award for Best Performance By an Actress In A Supporting Role in A Series for 'Sex and the City' backstage during the 60th Annual Golden Globe Awards at the Beverly Hilton Hotel on 19 January, 2003. Getty Images Kim Cattrall on sex and the stage Kim Cattrall attends the 54th Annual Primetime Emmy Awards at the Shrine Auditorium on 22 September, 2002 in Los Angeles, California. Getty Images Kim Cattrall on sex and the stage Kim Cattrall arrives at the Shrine Auditorium for the 8th Annual Screen Actors Guild Awards, 10 March 2002 in Los Angeles. Getty Images Kim Cattrall on sex and the stage Kim Cattrall holds her book during an in-store signing of 'Satisfaction: The Art of the Female Orgasm' 25 January, 2002 at Barnes and Noble in New York City. Getty Images Kim Cattrall on sex and the stage Kim Cattrell, Kristin Davis, Sarah Jessica Parker and Cynthia Nixon from 'Sex & the City' hold Golden Globes Awards at the 59th Annual Golden Globe Awards at the Beverly Hilton on 20 January, 2002. Getty Images Kim Cattrall on sex and the stage Cynthia Nixon, Kim Cattrall, Kristin Davis and Sarah Jessica Parker attend the 7th Annual Screen Actors Guild Awards 11 March, 2001 at the Shrine Auditorium in Los Angeles. Getty Images Kim Cattrall on sex and the stage Kristin Davies, Sarah Jessica Parker, Chris Noth, Kim Catrall and Cynthia Nixon celebrate their win for Best Television Series Comedy at the 57th Golden Globes in Beverly Hills, 23 January 2000. Getty Images Kim Cattrall on sex and the stage Kim Cattrall in the third series of 'Sex And The City' 21 November 2000. Getty Images Kim Cattrall on sex and the stage The cast of 'Sex And The City,' Season 2, 10 November 1999. Getty Images Kim Cattrall on sex and the stage Cynthia Nixon, Sarah Jessica Parker, Kim Cattrall, and Kristin Davis of 'Sex in the City' at the 1999 Emmy Awards held in Los Angeles, 13 September 1999. Getty Images Kim Cattrall on sex and the stage Kim Cattrall, 30 Jan 1999 Getty Images Kim Cattrall on sex and the stage Willie Garson, Sarah Jessica Parker and Kim Cattrall star in Sex in the City, 29 Jul 1998. Getty Images

She requested that anyone who knew where he was to contact the Royal Canadian Mounted Police in the town of Blackfalds, Alberta, or CrimeStoppers.

His step daughter, Katie Osmond, also used social media to share photos of Mr Cattrall.