Ben Stiller
Ben Stiller is an American actor, comedian, director, and producer, who directed this very film. His other acting credits include Reality Bites, Happy Gilmore, Flirting with Disaster, The Cable Guy, There's Something About Mary, Mystery Men, Keeping the Faith, Meet the Parents, Zoolander, The Royal Tenenbaums, Along Came Polly, Night at the Museum, Tropic Thunder, Greenberg, and The Meyerowitz Stories.
Kristen Wiig
Kristen Wiig is an American actress and comedian who first came to prominence as a regular cast member on Saturday Night Live. Since then she has pivoted to more film work, and her films include Knocked Up, Whip It, Bridesmaids (for which she was nominated for an Academy Award), How to Train Your Dragon, The Skeleton Twins, Ghostbusters, The Martian, and Wonder Woman 1984.
Shirley MacLaine
Oscar-winner Shirley MacLaine has had a long and celebrated career in film. She made her film debut in The Trouble with Harry directed by Alfred Hitchcock, for which she won a Golden Globe award as a promising newcomer. For her role in Some Came Running, MacLaine received an Academy Award nomination. Her role in The Apartment won her a second nomination. She also received nominations for her work in Irma la Douce and The Turning Point. In 1983 she won the Oscar for her role in Terms of Endearment.
Other films include The Children's Hour, The Apartment, Sweet Charity, Steel Magnolias, Postcards from the Edge, Guarding Tess, In Her Shoes, and Coco Chanel. In addition to her acting credits, MacLaine is well known for her New Age beliefs. She is a practitioner of Transcendental Meditation and has said that she lived in Atlantis in a past life.
Sean Penn
Sean Penn is a multiple Oscar winner known for his virtuosity as a dramatic actor. His films include Fast Times at Ridgemont High, At Close Range, State of Grace, Carlito's Way, Dead Man Walking, Sweet and Lowdown, I Am Sam, She's So Lovely, Hurlyburly, 21 Grams, Mystic River, and Milk. He has also worked as a director, on films including The Indian Runner, The Pledge, and Into the Wild.
Adam Scott
Adam Scott is an American actor and comedian who is known for his roles in Parks and Recreation, Step Brothers, The Aviator, The Good Place, and Big Little Lies.