Paul McCartney was once cast on Friends it has been revealed.

According to the show's casting director Leslie Litt, McCartney was headhunted for the role of Ross Geller's father-in-law back in 1998.

Speaking to Huffington Post recently, Litt confirmed that the show's creators wanted McCartney for season four's two-part finale, which saw Geller marrying British love interest Emily Waltham played by Helen Baxendale in London.

"I went through his manager and gave him all the details," Litt said.

"One day, someone in the office brought me a faxed letter written to me by Paul himself!" Litt continued to tell Huffington Post, "He thanked me for my interest and said how flattered he was, but it was a very busy time for him."

Emily's father was eventually portrayed by Scottish-born actor Tom Conti.