Call the Midwife is back on BBC One with the fifth episode of season 14 and Sister Julienne (played by Jenny Agutter) faces a huge emotional battle. A solo delivery tests her skills as she helps a mother through a traumatic birth. At the same time, the desperate mother is overcoming a personal crisis. Meanwhile, Shelagh Turner (Laura Main) is overseeing the care of a man living inside an iron lung. Elsewhere in Poplar, Violet Buckle (Annabelle Apsion) exercises her powers on the council to launch the Poplar Commonwealth Games. She enlists the help of Cyril Robinson (Zephryn Taitte), who has returned from visiting Lucille (Leonie Elliott).

Most of the main cast will be returning, including newcomer Sister Catherine (Molly Vevers), as viewers find out more about her personal struggles. Here is all you need to know about the guest cast for the latest episode. Ben Owen-Jones is a 53-year-old British actor who starred in Grange Hill as a child. In 1995 he had an accident which caused a spinal injury, leaving him paraplegic, and he has used a wheelchair ever since.

He went on to star in New Street Law, Frankie, Doctors and Casualty. Sophie Bould is a 43-year-old British theatre and TV actress who starred on the stage in South Pacific. Her TV appearances include Nolly, Doctors, Sex Education and Holby City. She married Robin Savage in Shropshire in September 2010. David Charles is a Welsh actor who is recognised for his most recent role as Malcolm Landry in Red Valley.

The star has also taken on guest roles in Doctor Who, Masters of the Air and The Crown. Jonathan Ball has had a number of guest roles over the years, having starred in EastEnders, The Witcher and The Crown. Not much is known about Sevvel Kannan at this time, so this may be their small screen debut. Eisa Latif is a 19-year-old actor based in London whose first role was as Harry in Call the Midwife. He has just finished filming a new project called Picture This.

Not much is known about Millie Young at this moment in time so this could be her acting debut. Not much is known about Olivia at this moment in time so this could be her acting debut. Laura Hanna is a British-Egyptian actress, born in London. She is also an award-winning vocalist. The star is also a writer and has just published a poetry anthology titled We Wrote In Symbols: Love And Lust By Arab Women.

Her TV credits include Heartstopper and Casualty. Robert Lonsdale is a 41-year-old English actor and musician who started acting at the age of eight. One of his first roles was in Coronation Street and he went on to star in Chewing Gum and The Interceptor. Andy Watkins is an acting and performance coach who started his career on stage when he was 20 years old. Call the Midwife airs on BBC One on Sundays at 8pm.