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.

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

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.

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

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

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.

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

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.

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

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

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

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.

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

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

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

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

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

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

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

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.

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!

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

Thank God Merrick Watts, Kate Kangbroek, Nish and Hamish Blake are here.