She's probably best-known as the long-serving landlady at the Queen Vic.
Now Barbara Windsor is widely tipped for a meeting with Queen Liz, with reports she is to be made a dame in this year's New Year Honours list.
The 78-year-old actress has previously been to Buckingham Palace, when she was awarded an MBE.
According to reports, the Queen was said to be "delighted" when the actress's name was put forward for the honour.
ITV News correspondent Juliet Bremner looks at some of the highlights of Barbara Windsor's career:
She was born in Shoreditch and initially became famous for her risqué appearances in the Carry On films of the 60s and 70s.
She then went on to gain a whole new army of fans as EastEnders landlady Peggy Mitchell when she took over the role in 1994. She has also appeared regularly in pantomime.
The soap favourite and former Carry On star will received the honour for her services to acting and charity work.
She is an ambassador for several charities and has also been the face of previous Poppy Day Appeals.