Thank God You're Here is an Australian television improvised comedy program created by Working Dog Productions, which premiered on Network Ten on 5 April 2006, and aired for the first three seasons with Seven for the fourth season.

Each episode involves performers walking through a door into an unknown situation, greeted by the line "Thank God you're here!". They then had to improvise their way through the scene. At the end of each episode a winner was announced. It was the most successful new show in Australia of 2006, attracting an average of 1.7 million viewers after the first few episodes.

The show is hosted by Shane Bourne, and is judged by Tom Gleisner. The format was sold for recreation in a number of countries.

Each contestant is dressed in appropriate costume, has some brief banter with the host, and is then invited to "walk through the blue door" onto a hidden set. They are greeted by the ensemble cast, in character, with the line "Thank God you're here!", and must then attempt to improvise their role in the scene. Typically they will be asked in-character questions by the ensemble cast and challenged to provide information about the scene, including the names of characters or objects.

Rebel Wilson is an Australian actress, writer, and stand-up comedienne, known for her roles in the television series Pizza and Bogan Pride and the film Bridesmaids.

"Rebel" is her real given name. Wilson was born and raised in Sydney with her three siblings, Liberty, Ryot and Annachi. Liberty and Ryot were on the first season of The Amazing Race Australia. Her parents were professional dog showers. Throughout high school Wilson's first career choice was mathematics. Wilson told The Sydney Morning Herald, "I was very academic at high school and was always good with numbers." Wilson attended the University of New South Wales, where she studied Law and Arts (Theatre and Performance Studies). She is a former Rotary International Youth Ambassador for Australia and was based in South Africa for one year, where she contracted malaria. Wilson had hallucinations in which she saw herself as an actress who had won an Oscar. This then convinced her to pursue an acting career.

In July 2011, Wilson became a spokesperson for weight loss and nutrition company Jenny Craig in Australia. In January 2012, Wilson revealed to James Wigney and Elle Halliwell of The Daily Telegraph that she had lost 10kg since signing up to the program. She also revealed the producers of Pitch Perfect had refused to let her lose any more weight during filming, as her contract stated she must stay the same size. Wilson said once her film commitments were over, she would start her diet again to reach her target weight of 80kg.

Joshua Lawson (born 22 July 1981) is an Australian actor. He grew up in Brisbane and attended St. Joseph's College, Gregory Terrace. He graduated from the National Institute of Dramatic Art in 2001. He also spent one year studying improvisation techniques in Los Angeles at The Second City, The Groundlings, ACME Comedy Theatre and I.O. West.

Lawson has had guest-starring roles in such popular Australian television programs as Blue Heelers and Home and Away, but is probably best known for his appearances on the improv comedy program Thank God You're Here and on the Australian drama, Sea Patrol and The Librarians. Josh has also starred in several television commercials, including advertisements for Coca-Cola Cherry, and Gold Class cinemas.

In 2006, he made his feature film debut in BoyTown.

He also hosted Wipeout Australia with James Brayshaw.

His older brother, Ben Lawson, had a full-time role on popular soap opera Neighbours as Frazer Yeats, while his younger brother, Jordan Lawson, plays bass in the Brisbane-based band The Gallant.

Anh Do (born 1977 in Vietnam) is a Vietnamese Australian author, actor and stand-up comedian.

He has appeared on many Australian TV shows such as Thank God You're Here and Good News Week, and was runner-up on Dancing With The Stars in 2007. He studied a combined Business Law degree at the University of Technology, Sydney. He is brother of film director Khoa Do and has acted in several of Khoa's films, including Footy Legends, which he co-wrote and produced.

Do and his family fled to Australia as refugees in 1980. In his 2010 autobiography,The Happiest Refugee, Do tells of how his family survived five days in a leaky fishing boat nine and a half metres long and two metres wide and packed with 40 Vietnamese refugees fleeing across the Indian Ocean. “We were crammed in like sardines,” he said.The Happiest Refugee has won many awards, including the 2011 Australian Book of the Year, Biography of the Year and Newcomer of the Year, as well as the Indie Book of the Year Award 2011, Non-fiction Indie Book of the Year 2011, and it was shortlisted for the 2011 NSW Premier's Literary Awards, Community Relations Commission Award.

Frank Woodley (born Frank Wood, 29 February 1968) is an Australian comedian who is best known for his work alongside Colin Lane as part of the comedic duo, Lano and Woodley. The two performed together for almost 20 years in live shows, a television series and an album of comedic songs, before deciding to pursue individual careers in 2006. As a solo performer, Woodley has frequently appeared as a guest on Australian television shows and has created several live shows, including the one-man play Possessed.

Woodley was born Frank Wood, the youngest of seven children. He grew up in suburban Victoria, where his family ran a milk bar in Glen Waverley. He adopted the stage name Frank Woodley—drawn from a childhood nickname—when he began performing as part of the comedy duo Lano and Woodley in 1993, and in 2000 had his name changed by deed poll to avoid confusion.

Woodley performed with fellow comedian Colin Lane as part of the duo Lano and Woodley for a period of almost 20 years. The two met through theatresports in the mid-1980s and first performed together at an open mike night at the Prince Patrick Hotel in Collingwood, Victoria in 1987 along with their friend Scott Casely, calling themselves the Found Objects. Over the next six years, the trio performed in venues throughout Australia and at the Edinburgh Festival Fringe. They became semi-regulars on ABC TV's The Big Gig, a show known for boosting the careers of new comedy acts, had their own commercial radio show for six months and were part of the short-lived Seven Network sketch show The Comedy Sale. When in 1992 Casley moved away to Alice Springs, Woodley and Lane decided to continue as a duo, drawing their name from childhood nicknames.