Guest on The Brit List, BBC America

Starring in Jack and The Beanstalk at the Clyde Auditorium, SECC, Glasgow

Hosting The National Lottery Awards, BBC1

Guest on QVC

Guest on Steve Wright in the Afternoon BBC Radio 2

Guest on The One Show discussing National Lottery Awards, BBC1

Guest on Fern Britton Meets..., BBC1

Guest on QVC

Book signing for Hollow Earth by John and Carole E Barrowman, Just Fabulous, Palm Springs, CA92262

Contestant on Celebrity Antiques Road Trip, BBC2 and BBC HD

Guest presenter on Attack of the Show, G4 TV (US cable)

First episode as recurring guest star, playing "The Well-Dressed Man", on Arrow, Sky 1 (UK)

Guest presenter on Attack of the Show, G4 TV (US cable)

First episode as recurring guest star, playing "The Well-Dressed Man", on Arrow, The CW (US) and CTV Two (Canada)

Guest presenter on Attack of the Show, G4 TV (US cable)

Book signing for Hollow Earth by John and Carole E Barrowman, The Red Balloon Bookshop, MN 55105

Book signing for Hollow Earth by John and Carole E Barrowman, Alverno College Wehr Hall, Milwaukee, WI 53234

Guest on The Morning Blend, Today's TMJ4 Channel

Book signing for Hollow Earth by John and Carole E Barrowman, Anderson's Bookshop, Naperville, IL 60540

Book signing for Hollow Earth by John and Carole E Barrowman, The Skokie Public Library, Skokie, IL 60077

Release in the US of Hollow Earth, published by Aladdin Books, the children's division of Simon and Schuster.

Presenting new collections in the HIM skincare range, QVC UK

Special Guest Host of the Opening Ceremony of the Destination Star Trek London Convention, and interviewer for the Five Captains panel (William Shatner, Patrick Stewart, Kate Mulgrew, Avery Brooks and Scott Bakula) at the Excel Centre, London

Host of the Specsavers Hearing Dogs for the Deaf Awards 2012 at the Honourable Artillery Company, in the presence of HRH The Princess Royal

Presenting new collections in the HIM skincare range, QVC UK

Presenting new collections in the HIM skincare range, QVC UK

Presenting new collections in the HIM skincare range, QVC UK

Presenting new collections in the HIM skincare range, QVC UK

Presenting new collections in the HIM skincare range, QVC UK

Starring in Gotta Sing, Gotta Dance, a tribute to Gene Kelly, BBC Radio 2 (recorded at Hackney Empire on 19 September 2012)

Book signing for Torchwood: Exodus Code by John and Carole E Barrowman, Forbidden Planet, Shaftesbury Avenue, London

Guest, with Carole E Barrowman, on Loose Women, ITV1

Book signing for Torchwood: Exodus Code by John and Carole E Barrowman, Waterstones, The Hayes, Cardiff

Guest on This Morning, ITV1

Book signing for Torchwood: Exodus Code by John and Carole E Barrowman, Waterstones, Bluewater, Greenhithe

Book signing for Torchwood: Exodus Code by John and Carole E Barrowman, WH Smith, Arndale Centre, Manchester

Book signing for Torchwood: Exodus Code by John and Carole E Barrowman, Waterstones, Argyle Street, Glasgow

UK release by BBC Books of Torchwood: Exodus Code by John and Carole E Barrowman

Guest presenter on Attack of the Show, G4 TV (US cable)

Convention appearance at Dragon*Con, Atlanta

Presenter of John Barrowman's Dallas - a two-part behind-the-scenes documentary about the iconic TV show, Channel 5

Convention appearance at Fan Expo Canada, Toronto

Presenting an award on the BBC 999 Awards, BBC1 (pre-recorded)

Guest presenter on This Morning, ITV1

Guest on The Nerdist Comic-Con Special, BBC America

Guest presenter on This Morning, ITV1

Guest presenter on This Morning, ITV1

Signing, with Carole E Barrowman, of special pre-release copies of Hollow Earth at the Simon & Schuster booth at San Diego Comic Con

Reporting live from San Diego Comic Con for US cable channel G4

Interview with The Nerdist Podcast Live, San Diego Comic Con

Filming of Antiques Road Trip Celebrity Special for Children in Need. For broadcast later in the year on BBC1

Guest on This Morning, ITV1, to talk about the National Lottery Awards

Interviews on BBC local radio to promote the National Lottery Awards (BBC Radio Merseyside, Manchester, Leeds, Hereford and Worcester, Northampton, plus pre-records for BBC Radio Tees and Newcastle)

Concert performance at Hampton Court Palace Festival

Concert performance at Tower Festival Headland, Blackpool. (Concert was cancelled by Council due to severe adverse weather conditions preventing safe rigging of the stage.)

Concert performance at Glasgow Green open-air theatre

Concert performance at Scarborough Open-Air Theatre

Guest on Daybreak, ITV1

Guest contributor on The Brit List: 20 Coolest, BBC America

Guest contributor on The Brit List: 20 Sexiest, BBC America

Guest, with regular contributor Carole E Barrowman, on The Morning Blend, TODAY'S TMJ4

Outside broadcast guest for coverage of HM The Queen's Diamond Jubilee, BBC1

Reporting from The Belfry Barge as part of HM The Queen's Diamond Jubilee Thames River Pageant, BBC1

Convention appearance at Collectormania, Stadium:MK, Milton Keynes.

Appearing on Chris Evans Breakfast Show, broadcast live from Hay Festival, to read one of the winning entries of the 500 Words Story-writing Competition, BBC Radio 2.

Interview on Chris Evans Breakfast Show, in advance of 1 June live broadcast from Hay Festival, BBC Radio 2.

Live interviews on BBC Radio Lancashire and BBC Radio Manchester, and a number of pre-recorded interviews with other regional radio stations, to promote the summer concerts.

Convention appearance at The Greatest Show in the Galaxy, East of England Showground, Peterborough.

Attending Tŷ Hafan's Tiaras and Pyjamas Midnight Sleep Walk, Cardiff.

Publication of the audiobook (download) version of Hollow Earth (written by John and Carole E Barrowman and read by John). The audiobook on CD is due for release in the UK on 2 July.

Guest, visiting a wolf sanctuary for The One Show, BBC1.

Convention appearance at the Chicago Comic and Entertainment Expo.

Guest on QVC Channel to promote HIM skincare range.

Guest, with Carole Barrowman, on TV Book Club, More 4

Guest, with Carole Barrowman, on The Club With Luke, Fun Kids Radio

Guest starring in comedy sketch show, Watson and Oliver, BBC2

Guest on QVC Channel to promote HIM skincare range.

With Carole Barrowman, guest on the Graham Norton Show on BBC Radio 2 to promote Hollow Earth.

Guest-presenter on This Morning, ITV1

Host at the Wales Contact Centre Awards (private function)

Signing Event with Carole Barrowman for Hollow Earth at Waterstone's, 2a The Hayes, Cardfiff CF10 1WB.

Guest, with Carole Barrowman, on Live with Gabby, Channel 5

Guest, with Carole Barrowman, on The Alan Titchmarsh Show, ITV1

Signing Event with Carole Barrowman for Hollow Earth at Waterstone's, Argyll Street, Glasgow G2 8BT.

Guest, with Carole Barrowman, on the Richard Bacon Show, BBC Radio 5 Live, to talk about Hollow Earth.

Guest on This Morning, ITV1

With Carole Barrowman, series of interviews on BBC regional radio stations, talking about Hollow Earth.

Signing Event with Carole Barrowman for Hollow Earth at Costco, Hartspring Lane, Watford WD25 8JS. (Open to members of Costco only)

Signing Event with Carole Barrowman for Hollow Earth at Waterstone's, Bluewater West, Kent DA9 9SE.

Panellist in final of Chris Moyles' Quiz Night, Channel 4

Guest-starring as Dr Dean Deville in Hustle, BBC1

Guest, with Carole Barrowman, on The One Show, BBC1

Publication of Hollow Earth (written by John and Carole E Barrowman) by Buster Books.

Guest on QVC Channel to promote the HIM skincare range.

Appearance in The Story of Musicals, three-part series, BBC4.

Starring in Robinson Crusoe and the Caribbean Pirates at the Clyde Auditorium, SECC, Glasgow