Cliff Parisi plays as Fred in Call the Midwife.
Cliff Parisi is the top #1 member of the cast and appears in 91 episodes.

Helen Elizabeth George (born 19 June 1984) is an English actress, best known for playing Trixie Franklin on the BBC drama series Call the Midwife. In 2015, she participated in the thirteenth series of BBC One's Strictly Come Dancing; she was paired with Aljaž Skorjanec, and finished in sixth place. She was nominated for the Grammy Award for Best Musical Theater Album at the 64th Annual Grammy Awards for her contribution to the cast recording of Cinderella.

Helen George plays as Trixie Franklin in Call the Midwife.
Helen George is the top #2 member of the cast and appears in 91 episodes.

Jennifer Ann "Jenny" Agutter (born 20 December 1952) is an English film and television actress. She began her career as a child actress in the mid 1960s, starring in the BBC television series The Railway Children and the film adaptation of the same book, before moving on to adult roles and relocating to Hollywood. She played Alex Price in An American Werewolf in London, Jessica 6 in Logan's Run, Joanne Simpson in Child's Play 2 and Jill Mason in Equus. Since the 1990s, she has worked in sound recording, and she is a patron of the Cystic Fibrosis Trust. After a break from acting she has appeared in several television series since 2000, including the British series Spooks and Call the Midwife. Description above from the Wikipedia article Jenny Agutter, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Jenny Agutter plays as Sister Julienne in Call the Midwife.
Jenny Agutter is the top #3 member of the cast and appears in 91 episodes.

Judith Catherine Claire "Judy" Parfitt (born 7 November 1935) is a BAFTA-nominated English theatre, film and television actress who began her career on stage in 1954. Description above from the Wikipedia article Judy Parfitt, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Judy Parfitt plays as Sister Monica Joan in Call the Midwife.
Judy Parfitt is the top #4 member of the cast and appears in 91 episodes.

Laura Main plays as Sister Bernadette in Call the Midwife.
Laura Main is the top #5 member of the cast and appears in 91 episodes.

Vanessa Redgrave CBE (born 30 January 1937) is an English actress and political activist. Redgrave rose to prominence in 1961 playing Rosalind in the Shakespeare comedy As You Like It with the Royal Shakespeare Company and has since starred in more than 35 productions in London's West End and on Broadway, winning the 1984 Olivier Award for Best Actress in a Revival for The Aspern Papers, and the 2003 Tony Award for Best Actress in a Play for the revival of Long Day's Journey into Night. She also received Tony nominations for The Year of Magical Thinking and Driving Miss Daisy. On screen she has starred in scores of films and is a six-time Oscar nominee, winning the Academy Award for Best Supporting Actress for the title role in the film Julia (1977). Her other nominations were for Morgan: A Suitable Case for Treatment (1966), Isadora (1968), Mary, Queen of Scots (1971), The Bostonians (1984), and Howards End (1992). Among her other films are A Man for All Seasons (1966), Blowup (1966), Camelot (1967), The Devils (1971), Murder on the Orient Express (1974), Prick Up Your Ears (1987), Mission: Impossible (1996), Atonement (2007), Coriolanus (2011), and The Butler (2013). Redgrave was proclaimed by Arthur Miller and Tennessee Williams as "the greatest living actress of our times", and has won the Oscar, Emmy, Tony, BAFTA, Olivier, Cannes, Golden Globe, and the Screen Actors Guild awards. Description above from the Wikipedia article Vanessa Redgrave, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Vanessa Redgrave plays as Mature Jenny in Call the Midwife.
Vanessa Redgrave is the top #6 member of the cast and appears in 91 episodes.

Stephen McGann is a British actor perhaps best known for playing Dr Turner in the BBC's Call The Midwife. He is one of a family of acting brothers including Joe, Paul, and Mark.

Stephen McGann plays as Dr. Turner in Call the Midwife.
Stephen McGann is the top #7 member of the cast and appears in 91 episodes.

Linda Bassett was born in the Kentish village of Pluckley - location for the television series The Darling Buds of May (1991). She was brought up in Pimlico, South London, by her typist mother and police officer father. She became interested in acting as a child when she was frequently taken to see plays in London, most notably at the Old Vic, the famous classical theater. On leaving school, Linda went to work at the Old Vic as an usherette and catering manager, before going to read English at Leeds University. However, she dropped out after a year and became involved in a local drama group which put on plays in community-based locations, such as schools. She regards this as her theatrical schooling, having had no formal training. She made her London stage debut at the age of 32 in 1982 and, in 1991, joined the Royal Shakespeare Company. Although she was a well-regarded stage performer, it was the 1999 film version of the play East Is East (1999) (in which she had been an original stage cast member) which brought her to a larger audience and, throughout the 2000s, she has been a familiar face in a variety of films and television series. In the late 1980s, she returned to live in Pluckley.

Linda Bassett plays as Nurse Phyllis Crane in Call the Midwife.
Linda Bassett is the top #8 member of the cast and appears in 63 episodes.

Victoria Natalie Yeates (born 19 April 1983) is an English actress. She is best known for her role as Sister Winifred in the period drama series Call the Midwife. She also appeared in the film Fantastic Beasts: The Crimes of Grindelwald and its sequel Fantastic Beasts: The Secrets of Dumbledore. Yeates was born and raised in Bournemouth, Dorset and practised ballet dancing as a child. In 2006, she earned a degree in acting at the Royal Academy of Dramatic Art (RADA). She began her career on the stage, earning critical praise for her roles in Noël Coward's Private Lives, in the Rookery Nook and in Michael McClure's The Beard. In 2017, she began touring in a production of Arthur Miller's The Crucible. In 2014, she joined the cast of the BBC period drama Call the Midwife as Sister Winifred, a midwife who moves to Poplar, London in the late 1950s to work at Nonnatus House. She became engaged to musician Paul Housden in 2016 in South Africa, during filming for the Call the Midwife Christmas special. They reside in London and married in June 2018.

Victoria Yeates plays as Sister Winifred in Call the Midwife.
Victoria Yeates is the top #9 member of the cast and appears in 48 episodes.

Annabelle Apsion plays as Violet Buckle in Call the Midwife.
Annabelle Apsion is the top #10 member of the cast and appears in 47 episodes.