Wall & Melzack's Textbook of Pain is a medical textbook published by Elsevier.
 It is named after Patrick David Wall and Ronald Melzack, who introduced the gate control theory into pain research in the 1960s.
 First released in 1984, the book has been described as "the most comprehensive scientific reference text in the field of pain medicine".
End of the Road is a 1970 film directed, co-written, and edited by Aram Avakian and adapted from a 1958 novel by John Barth, and stars Stacy Keach, James Earl Jones and Harris Yulin.
David Wall is an American actor who wrote, produced, and directed a 2007 dramedy film called "Noëlle", which won the Best Director Award at the Fort Lauderdale International Film Festival.
 His first film Joe and Joe was selected for the 1996 Sundance Film Festival and was also shot on Cape Cod in Massachusetts.
The Carlton D. Wall House is a Frank Lloyd Wright designed home in Plymouth, Michigan.
 It is one of Wright's more elaborate Usonian homes.
 In 1941, recently married Mr. and Mrs. Carlton David Wall, who were Wright’s youngest clients, approached Wright to design a house for them after Carlton Wall studied Wright’s architecture in college.
Cops and Robbers is a 1973 crime comedy film directed by Aram Avakian with an original screenplay by Donald E. Westlake which Westlake subsequently expanded into a novel.
 The film stars Cliff Gorman as Tom and Joseph Bologna as Joe.
Aram A. Avakian (April 23, 1926 – January 17, 1987) was an Armenian-American film editor and director.
 His work in the latter role includes "Jazz on a Summer's Day" (1960) and the indie film "End of the Road" (1970).
Ronald Melzack, {'1': ", '2': ", '3': ", '4': "} (born July 19, 1929) is a Canadian psychologist and emeritus professor of psychology at McGill University.
 In 1965, he and Patrick David Wall revolutionized pain research by introducing the gate control theory of pain.
David Wall (born 1 January, 1983) is an Australian racing driver competing in the Porsche Carrera Cup Australia Championship.
 He currently drives the No. 38 Porsche 911 GT3 Cup for Wall Racing.
David Wall, CBE (15 March 1946 – 18 June 2013) was an English ballet dancer, who, at the age of 21, became the youngest male Principal in the history of The Royal Ballet.
11 Harrowhouse is a 1974 British film directed by Aram Avakian.
 It was adapted by Charles Grodin based upon the novel by Gerald A. Browne with the screenplay by Jeffrey Bloom.
 It stars Charles Grodin, Candice Bergen, James Mason, Trevor Howard and John Gielgud.

Question: Are Aram Avakian and David Wall both actors?
Answer: no