ON SCREEN

Olivia Colman

Age: 40. Award-winning star of Twenty Twelve and Broadchurch. Equally adept in comedy or drama.

Mary Berry

Age: 79. The Great British Bake Off turned this septuagenarian into television royalty.

Clare Balding

Age: 43. Intitially a face of horse racing, she's now a versatile presenter on both TV and radio.

Julie Walters

Age: 64. From Acorn Antiques to Mo, she's stuck with TV alongside film success. Now a BAFTA fellow; currently filming c4's Indian Summers.

Victoria Wood

Age: 61. From As Seen on TV to Housewife, 49, the multi-talented actress/writer/director returns soon with musical drama Tubby and Enid.

Dawn French

Age: 56. French and Saunders, The Vicar of Dibley, The Wrong Mans…constantly working, constantly popular.

Sheridan Smith

Age: 33. The current go-to girl, picking up awards on stage and screen. And busy: The 7.39, The Widower and the forthcoming Cilla have all been on TV this year. 

Mary Beard

Age: 59. Cambridge classics professor who came to wider attention after presenting Pompeii and Meet the Romans and dealing creatively with internet trolls.

Sarah Lancashire

Age: 49. She'll always be grateful for the start on Coronation Street, but is now impressing audiences in Happy Valley and Last Tango in Halifax.

Joanna Lumley

Age: 68. In The New Avengers, Absolutely Fabulous and Sensitive Skin this actress and campaigner has always been  a scene stealer.

Claudia Winkleman 

Age: 42. Film 2014, The Great British Sewing Bee and Strictly Come Dancing have made her a household name.

Sarah Millican

Age: 39. Stand-up whose DVD has the highest sales for a female comedian – and Radio Times columnist!

Kirstie Allsopp

Age: 42. With Location, Location, Location she found homes for people. Now queen of craft.

Miranda Hart

Age: 41. The lead in her own eponymous comedy show and cherished in Call the Midwife.

Anne Reid

Age: 79. A star whose appeal has spanned 50 years.

Kirsty Wark

Age: 59. Journalist best known for fronting Newsnight and its sister programme The Review Show.

OFF-SCREEN

Heidi Thomas

Age: 52. Award-winning writer breathing new life into old stories. Currently heading to Broadway with a new version of Gigi.

Abi Morgan

Age: 45. Bafta and Emmy-winning writer of Sex Traffic and political thriller The Hour.

Beryl Vertue

Prolific TV producer, from Steptoe and Son to Men Behaving Badly. Chairman of Hartswood films.

Sue Vertue

Age: 53. Producer, formerly at Tiger Aspect (Mr Bean, The Vicar of Dibley), now working with her mum Beryl at Hartswood Films.

Jay Hunt

Age: 47. Chief creative officer at Channel 4, commissioning everything from Educating Yorkshire to Gogglebox.

Sally Wainwright

Age: 50. Writer with the golden touch, from At Home with the Braithwaites to Happy Valley.

Nicola Shindler

Age: 45. Founder of Manchester-based award-winning Red Production Company.

Elisabeth Murdoch

Age: 46. Founder and chairwoman of Shine, purveyors of popular factual shows, including tasty hits like Masterchef.

Pippa Harris

Age: 46. Co-founder of Neal Street Productions, working across film, theatre and TV.

Charlotte Moore

Age: 46. Controller of BBC1. Former commissioning editor of documentaries at the BBC.

Helen Boaden

Age: 58. The former controller of Radio 4 was until recently the BBC's director of news. Now director of BBC Radio.

Anne Mensah

Age: 42. Sky's head of drama has the biggest budget in TV, and access to some of the biggest stars and writers.

Hilary Bevan Jones

Age: 61. Producer with a strong track record. Up next: Roald Dahl's Esio Trot, with Judi Dench and Dustin Hoffman.

Kim Shillinglaw

Age: 45. The recently appointed controller of BBC2 has already made it plain she wants to see more women on screen.

For the full feature, get yourself a copy of Radio Times - on sale now in the shops and on Newsstand for iPad or iPhone