Christopher James Chaplin (born 6 July 1962 in Corsier-sur-Vevey, Switzerland) is a Swiss-born English composer and actor.
 He is the youngest son of film comedian Charlie Chaplin and his fourth wife, Oona O'Neill.
Shorty Hamilton (September 9, 1879 – March 7, 1925) was an American actor and silent film comedian who appeared in more than 80 films, mostly westerns, from 1909 to 1925.
 His birth name was William John Schroeder, and he was also known as "Jack Hamilton."
 He had served in the United States Cavalry for several years and worked as a cowboy in Montana and Texas.
 He was best known for the "Adventures of Shorty" series of two-reel silent films that were released from 1912 to 1917.
D'Arcy Browning is a Canadian actor born in Edmonton and raised in South Cooking Lake, Alberta in the early 2000's he portrayed Jesus Christ in the "Canadian Badlands Passion Play", Drumheller.
 The CBC filmed the documentary "The Cross and Bones" following Browning and the cast, paleontology experts from the Tyrell Museum and the bikers of the valley for the clash of science and religion every summer for the past dozen years.
 The film opened Hot Docs Canadian International Documentary Festival for the Toronto-based documentary film festival and travelled internationally.
Frank Alexander (May 25, 1879 – September 8, 1937) was an American silent film comedian and actor.
James Parrott (August 2, 1897 – May 10, 1939) was an American actor and film director; and the younger brother of film comedian Charley Chase.
Paul Demel (4 May 1903-31 August 1951) was a film actor born in Brno, then in the Austro-Hungarian Empire.
 He is most notable for his cameo appearances in the British Ealing comedies "Hue and Cry" (1947), "Passport to Pimlico" (1949), "The Lavender Hill Mob" (1951) and "His Excellency" (1952).
 His other film appearances include "English Without Tears" (1944) for Two Cities Films.
 He died in Munich.
George D. "Pete" Morrison (August 8, 1890 – February 5, 1973) was an American silent western film actor born in Westminster, Colorado.
 During his childhood he lived in Morrison, Colorado (named for his grandfather George Morrison) and Idaho Springs, and got his early tastes of horsemanship riding with his father Thomas during the summer.
 They drove cattle and sheep from the summer ranges in Middle Park and Fall River in Colorado to supply beef and mutton to the mining camps of Georgetown, Idaho Springs, Nevadaville, Black Hawk and Central City.
 During his mid-teens Pete worked in the mining industry, with his older brothers driving in sections of the Argo Tunnel where Pete was a motorman, hoist operator, topside helper, teamster hauler, assisting several of the larger miners in the Idaho Springs area.
 In the summer of 1910 Pete Morrison was an engine fireman for the Colorado and Southern Railway when he was lured away by the early western movies.
 Pete began working as a stunt man for the Essanay Studios of "Broncho Billy" films, soon discovering he could make more money working in movies in 2 weeks than he could make working for a month on the railroad.
 Pete followed his older brother Chick Morrison to California, where he also became a star in early western pictures.
 Through his career, Morrison transcended from very early film in 1909 to sound in 1935 starring in some 132 pictures.
George Wallace (born July 21, 1952) is an American comedian and actor.
Comedian is a 2002 American documentary film focusing on comedian Jerry Seinfeld that explores the other side of stand-up comedy; that is, the preparation, politics, nerves, creativity, and so on.
 The film also features an up-and-coming comic named Orny Adams as he struggles to make it in show business.
 Many other recognizable comedians also make at least a cameo, including Colin Quinn, Greg Giraldo, Jim Norton, Ray Romano, Godfrey, Chris Rock, George Wallace, Mario Joyner, Jay Leno, Tom Papa, and Bill Cosby.
Andrew G. Kaufman (January 17, 1949 – May 16, 1984) was an American comedian, actor, writer, performance artist and professional wrestler.
 While often referred to as a comedian, Kaufman described himself instead as a "song and dance man."
 He disdained telling jokes and engaging in comedy as it was traditionally understood, once saying in a rare introspective interview, "I am not a comic, I have never told a joke.
 ... The comedian's promise is that he will go out there and make you laugh with him.
 ... My only promise is that I will try to entertain you as best I can."

Question: When was the  American comedian and actor born who make at least a cameo in the documentary film Comedian?
Answer: July 21, 1952