Question: While Krishnan–Panju are Indian filmmakers, what is William Nigh?

Context paragraphs:
Son of the Navy: Son of the Navy is a 1940 American comedy-drama film directed by William Nigh.

The Fire Brigade: The Fire Brigade (also known as Fire!)  is 1926 American silent drama film directed by William Nigh.  The film stars May McAvoy and Charles Ray.  "The Fire Brigade" originally contained sequences shot in two-color Technicolor.  A print of the film is preserved in the Metro-Goldwyn-Mayer/United Artists archives.

Hoosier Schoolboy: Hoosier Schoolboy is a 1937 American film directed by William Nigh.

Poompaavai: Poompaavai is a 1944 Indian Tamil-language film directed by the duo Krishnan–Panju in their directorial debut.  Produced under the banner of Leo Films, it features K. R. Ramaswamy, U. R. Jeevarathinam, K. Sarangkapani, K. R. Chellam, T. R. Ramachandran, A. R. Sakunthala, S. V. Sahasranamam, D. Balasubramaniam, N. S. Krishnan, T. A. Madhuram, M. R. Durairaj and ‘Kottapuli’ K. P. Jayaraman.

William Nigh: William Nigh (October 12, 1881 – November 27, 1955) was an American film director, writer, and actor.  His film work sometimes lists him as either "Will Nigh" or "William Nye".

The Single Sin: The Single Sin is a 1931 Pre-code comedy film directed by William Nigh and starring Kay Johnson.  It was produced and released by Tiffany Productions.

Don't Get Personal (1936 film): Don't Get Personal is a 1936 American comedy film directed by William Nigh and written by George Waggner, Clarence Marks and Houston Branch.  The film stars James Dunn, Sally Eilers, Pinky Tomlin, Spencer Charters, Doris Lloyd and George Cleveland.  The film was released on February 12, 1936, by Universal Pictures.

Ratha Kanneer: Ratha Kanneer (English: "Blood Tears" ) is a 1954 Indian Tamil-language drama film directed by R. Krishnan and S. Panju.  The screenplay was written by Tiruvarur K. Thangaraj, and the film features M. R. Radha in the lead role.  The film was produced by Perumal Mudaliar of National Pictures.  The story revolves around Mohanasundaram, a returned-from-abroad, westernised, rich man who shows arrogance and contempt towards anything part of Indian culture and anyone below his social standards.

Gangster's Boy: Gangster's Boy is a 1938 American film directed by William Nigh.

Krishnan–Panju: R. Krishnan (1909–1997) and S. Panju (1915–1984), collectively referred to as Krishnan–Panju, were Indian filmmakers.  The duo directed more than 50 films in South Indian languages and in Hindi.

Supporting paragraphs: Krishnan–Panju William Nigh
Answer: an American film director, writer, and actor