Various presenters have filled in for the main presenters if they were away or ill those being Síle Seoige, Gráinne Seoige, Kathryn Thomas and Caroline Morahan but Pamela Flood has filled in throughout the past five seasons for various reasons.
Thomas Jefferson | Thomas Edison | Thomas | Thomas Hardy | Thomas Mann | Thomas Aquinas | Clarence Thomas | Thomas Gainsborough | Dylan Thomas | Thomas Pynchon | St. Thomas | Saint Thomas, U.S. Virgin Islands | Thomas Carlyle | Thomas the Tank Engine | Thomas Moore | Thomas Cromwell | Thomas Becket | Thomas the Apostle | Thomas Merton | Thomas Tallis | Thomas Paine | Roy Thomas | Thomas Telford | Thomas More | Thomas Wentworth, 1st Earl of Strafford | Ryan Thomas | C. Thomas Howell | Thomas Kean | Thomas Gage | Thomas Eakins |
Season 3 began in March 2007 and featured the three presenters travelling down the West Coast of Australia in a camper van called Kathryn Thomas (after the No Frontiers presenter).