Peter Rowsthorn, Nina Oyama, Chris Parker and Anne Edmonds step through the blue door on Thank God You're Here.

Thank God Josh Lawson, Alan Brough, Andrew G and Jo Stanley are here.

Thank God Glenn Robbins, Matthew Newton, Jo Stanley and Merrick Watts are here.

Angus Sampson back for the final episode of the season along with Hamish Blake, Shaun Micallef, Julia Zemiro and Anh Do.

Arj Barker is a spiritual leader, Josh Lawson commands a submarine, Felicity Ward is hiding her criminal husband, and Josie Long stars in a daytime soap. All together, they're flight attendants in training.

Emma Holland, Merrick Watts, Michelle Brasier and Rhys Nicholson step through the blue door on Thank God You're Here.

Urzila Carlson, Aaron Chen, Gillian Cosgriff and Luke McGregor step through the blue door on Thank God You're Here.

Kitty Flanagan, Guy Montgomery, Marty Sheargold & Emma Holland take up the challenge when they walk through the blue door on 'Thank God You're Here.

Guy Montgomery, Ting Lim, Takashi Wakasugi, Melanie Bracewell step through the blue door on Thank God You're Here.

Melanie Bracewell, Guy Montgomery, Geraldine Hickey and Ross Noble step through the blue door on Thank God You're Here.

Merrick Watts, Nish ,Bob Franklin and Fifi Box star.

Hamish Blake, Tanya Bulmer, Josh Lawson and Angus Sampson perform.

Thank God Julia Zemiro, Matthew Newton, Russell Gilbert and Ryan Shelton are here.

Tony Martin, Eddie Ifft, Julia Morris and Shaun Micallef step through the door.

Actor Virginia Gay and comedians Guy Montgomery, Danielle Walker and Aaron Chen, step through the blue door for the third episode of the return season of 'Thank God You're Here.'

Anne Edmonds, Sam Pang, Frankie McNair and Hamish Blake step through the blue door for the first episode of Thank God You're Here.

Akmal Saleh is dressed in an ethnic outfit of some sort. Hamish Blake has a tie and white lab coat. First-timer Anthony Field is put in a martial arts uniform. And Kate Jenkinson looks most ladylike in her corsetted dress and petticoat.

Thank God Peter Rowsthorn, Jimeoin, Robyn Butler and Stephen K. Amos are here.

Tony Martin, Cal Wilson, Carl Barron and Stephen Curry give the door a try.

Thank God Peter Helliar, Peter Rowsthorn, Ryan Shelton and Rebel Wilson are here.

TV Host and radio legend, Hamish Blake plus comedians Emma Holland, He Huang and Ross Noble step through the blue door on 'Thank God You're Here.'

Thank God Bob Franklin, Angus Sampson, Fifi Box and Tahir Bilgiç are here.

Hamish Blake is a knight in shining armor, Rob Carlton is interrupted on the 18th hole, Peter Rowsthorn tries to sell some camping equipment, and Josie Long walks the red carpet.

Comedians Lloyd Langford, Luke McGregor and Geraldine Hickey, plus radio presenter Fifi Box, step through the blue door for the second episode of the return season of 'Thank God You're Here'.

Thank God Shaun Micallef, Dailan Evans, Bianca Dye and Josh Lawson are here.