Fifi Box is dressed in a tracksuit, Frank Woodley is fitted out in Roman era finery, Angus Sampson is scrubbed up and ready, and Peter Rowsthorn looks like a professional.

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.

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

Santo Cilauro, Peter Rowsthorn, Robyn Butler and Angus Sampson step through the door this week.

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

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

Josh Lawson, Fifi Box, Bob Franklin and Frank Woodley share the stage this week.

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

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

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

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 Bob Franklin, Angus Sampson, Fifi Box and Tahir Bilgiç are 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 Josh Lawson, Alan Brough, Andrew G and Jo Stanley are here.

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

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

Thank God Glenn Robbins, Matthew Newton, Jo Stanley and Merrick Watts 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 Merrick Watts, Kate Kangbroek, Nish and Hamish Blake are here.

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

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

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

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

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

Dave Hughes, Kate Jenkinson, Anh Do and Hamish Blake improv their way through the blue door.

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

Angus Sampson manages a hotel, Rebel Wilson is entering royalty, Jordon Raskopoulos is a Roman scholar, and Dave Hughes is a children's' entertainer.

Julia Zemiro visits family for holiday, Carl Barron drives race cars, Bob Franklin has to fire the tea lady, and Tom Gleeson is a diplomat wearing camouflage. All together they hold a wedding reception.

Tony Martin owns a mine, Cal Wilson is a medium impressed by fire, Franklyn Ajaye is a boxer set to help troubled kids, and Merrick Watts pilots a grounded plane. All together, they're employed by a nightclub.

Thank God Heath Franklin, Kate Langbroek, Angus Sampson and Tony Truslove are here.

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.

Anh Do is an officer in a kids show, while Julia Zemiro has traveled around the world - twice. Colin Lane loses an arm and fights the French, and Adam Hills talks about a building being built. All together, their team won the championship.

Thank God Rebel Wilson, Merrick Watts, Alan Brough and Akmal Saleh are here.

Felicity Ward is a Aviator at a media conference, Hamish Blake is a contestant on a dating show, Josh Lawson is a vampire meeting his girlfriends parents, Angus Sampson is a police officer at a law drafting conference and Toby Truslove is a captain of a spaceship. All together they're part of the 'Showbiz Squares' game show scenario.

Urzila Carlson, Aaron Chen, Julia Zemiro & Mark Bonanno step through the blue door for the first episode of the return season of Thank God You're Here, with new host, Celia Pacquola!

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'.

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.'

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.'

Michelle Brasier, Marty Sheargold, Ray O'Leary & Julia Morris step through the blue door on another episode of '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.'

Melanie Bracewell, Rhys Nicholson, Dane Simpson & Urzila Carlson step through the blue door to take the nail-biting challenge 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.

Anne Edmonds, Sam Pang, Frankie McNair and Hamish Blake step through the blue door for the first episode of 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.

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.

Ray O'Leary, Virginia Gay, Susie Youssef and Lloyd Langford step through the blue door on Thank God You're Here.

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

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

Lloyd Langford, Bron Lewis, Felicity Ward and Ivan Aristeguieta 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.