Matt Baker, Zoe Ball, Sir Lenny Henry, Davina McCall and Paddy McGuinness will host BBC One’s The Big Night In.
They join Peter Kay, Catherine Tate and Gary Barlow, who were previously announced as guests on the charity broadcast.
The collaboration between BBC Children In Need and Comic Relief will celebrate the British public’s community spirit and resilience, while offering a programme of light entertainment.
Money raised will be split equally between the two charities to provide support to local projects and programmes across the UK during the coronavirus pandemic.
Countryfile star Baker said: “At a time when, in my generation, the UK has never felt more together, we’re inviting everyone to share a Big Night In.
“As a board member of BBC Children in Need for many years the very purpose of what we do is to be there for those who need us the most.
“Through the power of TV together with Comic Relief we’ll support, give thanks and acknowledge how we’re making the best of the situation we find ourselves in.
“It’s my honour to host The Big Night In.”
BBC Radio 2 presenter Ball said: “We are always so blown away by folks’ generosity each year supporting Comic Relief and Children In Need and now during these extraordinary times more than ever people in our communities are in need of our love and support.
“So join us from the comfort of your sofas superheroes, for a night of daft joy, entertainment and inspiration, and help us raise some much needed dosh for those projects helping our loved ones in our local communities.”
Sir Lenny said: “I’ve been part of the Comic Relief family for years, and at times like these it’s so important we all come together to support one another, which is why we’ve joined forces with BBC Children in Need for The Big Night In.
“We want to shine a light on the amazing things communities are doing and keep you entertained whilst you can’t leave your homes.
“Both charities will be supporting a huge number of smaller charities and projects that will be protecting the most vulnerable people in society, so it’s going to be a brilliant night for a great cause.”
McCall promised that the event would be “a really special evening” while Top Gear host McGuinness thanked “all the amazing key workers out there and our fantastic NHS”.
The evening will include prize giveaways, live music performances from artists at home, and a series of celebrity appearances.
The show will be broadcast on BBC One on Thursday April 23 between 7pm and 10pm.