Veteran actress Judi Dench has said acting on Zoom is "very unnerving" and explained how "actors never really look at each other" and now they have to.

The veteran actress, 86, makes a cameo in Michael Sheen and David Tennant's virtual lockdown show, Staged.

The Oscar-winning star said that filming on Zoom means being watched by other actors.

"(Acting) on Zoom is very unnerving," Dame Judi told Zoe Ball, on the Radio 2 Breakfast Show.

"On stage, actors never really look at each other – they do a bit if they’re doing a bit of a scene.

"But on Zoom, everybody’s looking at you."

"It’s very, very disconcerting."

The hit BBC comedy, featuring Tennant and Sheen as themselves as well as their partners, is filmed in the stars’ homes on their laptops.

"They say, 'Look at the top right-hand corner’," Dame Judi said.

"But then you’re looking at a tiny little button thing, you can’t react, it’s all mad!," she said of filming with the technology.

Dench recently said she had her first Covid-19 jab, calling it a "great start".