GB News has poached Colin Brazier from Sky News ahead of its launch later this year.
The veteran journalist, 52, has worked for Sky News since 1997 but will shortly leave the channel in order to host a new daytime news, interview and debate show on GB News.
"I'm delighted to be joining GB News," he said. "It will be an important punctuation mark in the evolving story of news broadcasting in Britain and I'm thrilled to be there at the start.
"GB News will lend an ear to some of Britain's marginalised and overlooked voices, an audience I have always cared about.
"I will treasure my time at Sky, working alongside some brilliant journalists but GB News is an irresistible new challenge, a chance to build an innovative news channel alongside some of British journalism's most trusted names."
John McAndrew, director of news and programming at GB News, added: "Hiring someone of Colin's calibre clearly demonstrates our ambition for GB News and our commitment to journalism.
"We worked together for many years at Sky News and I know he is a perfect fit for us: a world-class journalist with a passion for new ways of doing things.
"I know Colin will bring all his experience and personality to our channel and will thrive in this new environment."
Brazier becomes the third on-air talent to be announced for the new channel, with GB News chairman Andrew Neil hosting the flagship primetime show and showbiz journalist Dan Wootton also anchoring a daily programme.