Question: Which actor starred in Big Bug Man, that is widely credited with bringing realism to film acting?

Context paragraphs:
Peter Shin: Peter Shin is an American animator who served as supervising director of "", the director of "Big Bug Man", the director of "Family Guy" episodes "Death Has a Shadow", "Emission Impossible", "North by North Quahog", "It's a Trap! " and "The Simpsons Guy" and was a character layout artist "The Simpsons" for several episodes between 1990 and 1995.  He directed the first ever episode of Family Guy.

Bug Man: The Bug Man series is a crime/thriller novel series written by bestselling author of "PlagueMaker", Tim Downs and followed the series' main character, Nick Polchak who is a forensic entomologist.  The first novel in the series was released in 2003, and was a major success.  It received good reviews from readers and critics alike, and was published by Howard Publishing.

Dilip Kumar: Dilip Kumar (born Muhammad Yusuf Khan; 11 December 1922) is an Indian film actor, producer and activist.  Also known as the "Tragedy King", he is credited with bringing realism to film acting since his first film which was released in 1944.  He is considered one of the greatest and most influential actors of all time.  He has been described as "the ultimate method actor" (natural actor) by Satyajit Ray.  Kumar is one of the biggest Indian movie stars, and a pioneer of method acting, predating Hollywood method actors such as Marlon Brando.  Kumar debuted as an actor in the film "Jwar Bhata" (1944), produced by Bombay Talkies.  His career has spanned over six decades and over 65 films.  Kumar is known for roles in films such as the romantic "Andaz" (1949), the heartwarming "Babul" (1950), the impassioned "Deedar" (1951), the swashbuckling "Aan" (1952), the dramatic "Devdas" (1955), the comical "Azaad" (1955), "Naya Daur" (1957), "Yahudi" (1958), "Madhumati" (1958), "Kohinoor" (1960), the epic historical "Mughal-e-Azam" (1960), the social "Gunga Jamuna" (1961) and "Ram Aur Shyam" (1967).

Tim Downs: Tim Downs is an American author best known for his "Bug Man" series of novels featuring forensic entomologist Dr. Nick Polchak.  The series includes the books "Like Flies To A Corpse" later renamed "Shoofly Pie" (2003), "Chop Shop" (2004), "First the Dead" (2007), "Less Than Dead" (2008), "Ends of the Earth" (2009), as well as, a new release entitled "Nick of Time" (2011).

Big Bug Man: Big Bug Man is an American animated movie starring Brendan Fraser and Marlon Brando.  The movie is a Studio-Free Studios Production, and it was originally to be released between 2006 and 2008, but there is now no news on its release or distribution.  The movie is Marlon Brando's last known film work.

Steven R. Kutcher: Steven R. Kutcher (born January 9, 1944) is an American entomologist who has worked for decades as a "wrangler" of insects and other arthropods in some of the highest-grossing productions and with some of the most famous people in the entertainment industry.  In doing so, he has himself gained media attention worldwide as "The Bug Man of Hollywood."

Marlon Brando: Marlon Brando Jr. (April 3, 1924 – July 1, 2004) was an American actor, film director and political activist.  He is widely credited with bringing realism to film acting.  He helped to popularize the Stanislavski system of acting, studying with Stella Adler in the 1940s.  Brando is widely known for his Academy Award-winning performances as Terry Malloy in "On the Waterfront" (1954) and Vito Corleone in "The Godfather" (1972), as well as his performances in "A Streetcar Named Desire" (1951), "Viva Zapata! " (1952), "Julius Caesar" (1953), "The Wild One" (1953), "Guys and Dolls" (1955), "Sayonara" (1957), "Last Tango in Paris" (1972), and "Apocalypse Now" (1979).  Brando was also an activist for many causes, notably the Civil Rights Movement and various Native American movements.

Big Bug, Arizona: Big Bug is a ghost town in Yavapai County, Arizona.  The former settlement is located twelve miles southeast of Prescott and was established in 1862.

Commander Blood: Commander Blood is a science fiction adventure game that was developed by Cryo, a French company that also created "Captain Blood" (released in 1988).  Designed to run on MS-DOS, "Commander Blood" was released in 1994.  "Big Bug Bang", the sequel to "Commander Blood", was released in 1996, and was available in French, German and English.

Mani Ratnam: Gopala Ratnam Subramaniam (born 2 June 1956), commonly known by his screen name Mani Ratnam, is an Indian film director, screenwriter, and producer who predominantly works in Tamil cinema.  Cited by the media as one of India's influential filmmakers, Mani Ratnam is widely credited with revolutionising the Tamil film industry and altering the profile of Indian cinema.  Although working in the mainstream medium, his films are noted for their realism, technical finesse, and craft.  The Government of India honoured him with the Padma Shri, acknowledging his contributions to film in 2002.

Supporting paragraphs: Big Bug Man Marlon Brando
Answer: Marlon Brando Jr.