She has so far had minor parts in Doctor Who and detective drama series Lewis.

But now Daisy Lewis is set to hit the big time as she joins the cast of hit ITV show Downton Abbey, playing the new love interest of widower Tom Branson.

The British actress has been spotted filming alongside Tom Branson over the last couple of days, amid rumours she will become one of the show’s most prominent characters.

Daisy, who’s character is currently unnamed, no doubt feels right at home as she has already starred alongside Maggie Smith and Hugh Bonneville in 2009 feature film From Time To Time, also penned by Julian Fellowes.

The actress, who trained at the National Youth theatre, has also had small parts in BBC television shows including Doctor Who, Lewis, After You've Gone and Miss Austen Regrets.

Speaking about her role a source told The Daily Mirror: 'Daisy will become one of Downton’s most prominent characters. She wowed producers in her audition and they are delighted to have secured such a brilliant young actress.'

The source continued: 'Her romance with Tom will be one of the main storylines of the series. He will begin to develop feelings for her and they start a secret affair.

'Tom will have an even bigger role in the new series after -becoming the estate manager of Downton,' they added.

【英劇資訊】熱門英劇《唐頓莊園》第四季正在拍攝中，日前有報(bào)道稱英國演員Daisy Lewis 將加盟該劇飾演鰥夫湯姆-布蘭森的孩子Baby Sybil 的保姆，并將于在上季中失去妻子的湯姆-布蘭森發(fā)展一段感情。Daisy Lewis 出演《唐頓莊園》的劇照也在日前正式曝光。

知情人透露，Daisy Lewis 飾演的角色目前尚未確定名字，但這個(gè)決定與湯姆-布蘭森的愛情故事將是第四季的主線，湯姆在第四季中的戲份也會(huì)增加?！短祁D莊園》第四季將于今年9月在英國ITV電視臺(tái)首播。