Yvette Nicole Brown has been cast in 'Lady and the Tramp'.

The 47-year-old actress has jumped on board Disney's live-action reboot and will play Aunt Sarah - the owner of trouble-making Siamese cats Si and Am - in the movie which will air on the studio's digital streaming service next year.

The movie will see Aunt Sarah looking after Jim Dear and his wife Darling's baby when Si and Am mess up the house and trick her into thinking it was Lady.

Tessa Thompson will voice Lady the cocker spaniel while Justin Theroux will play Tramp, Benedict Wong will voice Bull, an English bulldog, Kiersey Clemons will play Darling, and Ashley Jensen will voice Scottish Terrier, Jackie.

Jackie is the female version of the original Jock - who appeared in the 1955 animated film - and lived next door to Lady and was one of her best friends.

Filmmaker Charlie Bean - who is known for directing 'Tron: Uprising' and 'The LEGO Ninjago Movie' - has agreed to direct.

Brigham Taylor, who worked on 'The Jungle Book' remake back in 2016, is producing the picture while Andrew Bujalski is penning the script.

The movie follows the unlikely love story between a pampered Cocker Spaniel named Lady and a streetwise mongrel named Tramp.

Lady finds herself out on the streets after her owners have a baby but she is saved by Tramp who shows her how to live her life free and collarless.

One of the most iconic scenes from the film is the candlelit spaghetti dinner in an alley while two humans sing 'Bella Notte'.

'Lady and the Tramp' - which was Disney's 15th animated feature - was nominated for Best Picture at the 1956 BAFTA awards.

The movie also featured the song 'He's a Tramp' which was performed by jazz singer Peggy Lee, who also voiced four characters as well as co-wrote six tracks.

The studio's new streaming service is reportedly set to have four to six movies a year including film and TV from Disney's brands such as Pixar, Marvel and 'Star Wars'.

Disney has already rebooted many of its beloved animations including 'The Jungle Book', 'Beauty and the Beast', 'Maleficent' and 'Cinderella'.

And the company has a number of films lined up for live action updates such as 'Mulan', 'The Lion King', 'Aladdin', 'The Little Mermaid' and 'Pinocchio'.