Matthew Newton makes his debut in a green velvet jackets. As does Shaun Micallef in an enthusiastic t-shirt. Fifi Box returns all primped and put together like a proper lady. While Angus Sampson walks through the door in a tweed and leather jacket.

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.

Thank God Hamish Blake, Bob Franklin, Fifi Box and Peter Rowsthorn are here.

Peter Rowsthorn, Josh Lawson, Angus Sampson and Julia Zemiro are ready to step through the door this week.

Akmal Saleh, Shaun Micallef, Alan Brough and Julia Zemiro guest star.

Marty Sheargold, Emma Holland, Zoe Coombs-Marr and Tommy Little, 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.

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

Sam Pang, Urzila Carlson, Guy Montgomery, Anisa Nandaula & Hamish Blake, step through the blue door for the last time this series, on Thank God You're Here.

Comedians Joel Creasey, Frankie McNair, Lloyd Langford, and Julia Zemiro step through the blue door to test their quick wit on 'Thank God You're Here.'

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

Peter Rowsthorn, Nina Oyama, Chris Parker and Anne Edmonds step 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.

Five stars (Shaun Micallef, Angus Sampson, Frank Woodley, Kate Langbroek and Akmal Saleh) compete on the season finale.

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

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

Akmal Saleh, Rebel Wilson, Dave Hughes, and Josh Lawson have a go at the door.

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

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

Fifi Box, Glenn Robbins, Frank Woodley and Akmal Saleh guest star.

Hamish Blake looks like he stepped out of the 1950s. Anh Do tries on a chef's hat. Cal Wilson gets gussied up in a formal gown. And Tony Martin ties out the hipster look. For the group challenge, they all don suits of armor.

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

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

Thank God Tahir Bilgiç, Tony Martin, Cal Wilson and Arj Barker are here.

Thank God Shaun Micallef, Julia Zemiro, Tony Martin, Hamish Blake and Frank Woodley are here.

Thank God Peter Helliar, Stephen Curry, Cal Wilson and Josh Lawson are here.

Thank God Frank Woodley, Ross Noble, Matt Tilley and Julia Zemiro are here.

Cal Wilson, Arj Barker, Sean Choolburra and Merrick Watts improv their way through the blue door.

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

Thank God Merrick Watts, Colin Lane, Cal Wilson and Rhys Darby 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.