The following events happened in the 20th century.
- 1939-1945: Denholm Reynholm's father most likely fought in ww2 and was issued with a service revolver which later became a family heirloom.
- 1972: The Godfather: Part I is released.
- 1974: The Godfather: Part II is released.
- November 2, 1982: The TV game show Countdown is first broadcast on Channel 4.
- c. 1983 - Maurice Moss's mother successfully sues her son after he broke the patio window.
- 1998: Prime, then known as Harold Tong, wins year 16 of the TV game show, Countdown.
- c. 1971: Jason
- c. 1972-73: Maurice Moss
- c. 1977: Kenny
- c. 1977: Jen Barber
- c. 1979: Roy Trenneman
- January 11, 1986: Rachel Riley, the co-presenter of the TV gameshow Countdown, is born.
- April 16, 1971: Belinda Stewart-Wilson, portrayer of Barbara Reynholm, is born.
- 1971: Sarah Hadland, portrayer of Margaret, is born.
- Febuary 24, 1972: James Bachman, portrayer of Jeff Holcorn, is born.
- July 10, 1972: Peter Serafinowicz, who voices a newsreader and advertiser and is the brother-in-law of Graham Linehan, is born.
- 1972: Dolly Wells, portrayer of Paula and Miranda, is born.
- May 21, 1973: Noel Fielding, portrayer of Richmond Avenal, is born.
- August 14, 1973: Darren Strange, portrayer of a lawyer in the episode Tramps Like Us, is born.
- November 10, 1973: Jonathan Ryland, portrayer of Gary, is born.
- 1973: Cavan Clerkin, portrayer of Dan, is born.
- 1973: Orlando Seale, portrayer of Peter File, is born.
- May 2, 1974: Matt Berry, portrayer of Douglas Reynholm, is born.
- January 24, 1975: Lucy Montgomery, portrayer of April Shepard, is born.
- 1975: Catherine Shepherd, portrayer of Jessica, is born.
- March 5, 1976: Cordelia Bugeja, portrayer of Abi, is born.
- March 16, 1976: Wendy Wason, portrayer of 'Woman in Lift' in the episode Calamity Jen, is born.
- November 16, 1976: Danny Wallace, portrayer of Paul, Denholm Reynholm's cultural adviser, is born.
- 1976: Jim Alexander, portrayer of Rupert, is born.
- April, 1977: Alice Lowe, portrayer of Patricia, is born.
- 1977: Richard Ayoade, portrayer of Maurice Moss, is born.
- 1977: Nicholas Burns, portrayer of Jerome, is born.
- November 7, 1978: Oliver Chris, portrayer of Daniel Carey, is born.
- 1978: Katherine Parkinson, portrayer of Jen Barber, is born.
- October 9, 1979: Chris O'Dowd, portrayer of Roy Trenneman, is born.