Taskmaster Series 18 arrives 12th September on Channel 4 in the UK and here on YouTube 13th September at 9pm BST.

They are The News Quiz host Andy Zaltzman, I'm a Celebrity and Celebrity Gogglebox star Babatunde Aléshé, Starstruck and Ghosts actress Emma Sidi, stand-up comic Jack Dee (Lead Balloon) and comedian Rosie Jones (Out of Order, Trip Hazard: My Great British Adventure).

For anyone else that doesn't know who they are (source)