Question: What profession does Jack Diamond and Bernard Manning have in common?

Context paragraphs:
Tony Hiller: Anthony Toby "Tony" Hiller (born 30 July 1927) is a British songwriter.  He began his musical career as a member of the song and dance duo The Hiller Brothers, sharing the stage with his brother Irving.  The Hiller Brothers appeared with many artists of the time including Alma Cogan, Tommy Cooper, Val Doonican, Matt Monro, The Shadows, Bernard Manning, Kathy Kirby, Roger Whittaker, Rip Taylor, Gene Vincent, Lance Percival, Tessie O'Shea, Frank Ifield, Deep River Boys, The Dallas Boys, Clark Brothers, Paul Melba and Ray Burns.

Jack Diamond (comedian): Jack Diamond (Manchester, 12 August 1941) is a British comedian, known for his work in clubs and theatres in northwest England.  He has been described as a "Blackpool favourite" by "The Stage" magazine and "a very funny man" by Bernard Manning.

The Wheeltappers and Shunters Social Club: The Wheeltappers and Shunters Social Club was a British television variety show produced by Granada Television from 1974 to 1977.  It was set in a fictional working men's club in the North of England and was hosted by comedian Colin Crompton as the club's Chairman.  The show's compere was usually Bernard Manning, who as well as telling jokes and introducing acts often finished the show with a song.  Crompton was frequently the butt of his jokes, acting as Manning's stooge.

Howard Read: Howard Oliver Drinkwater Read is a British comedian, animator and aspiring song writer best known for his work with his animated sidekick, Little Howard.  His other creations include an angry manager with a conversational style and the worldview of Bernard Manning, Roger T Pigeon, and H:BOT 2000, a robot from the future.  Each of these characters interact with both Big Howard and each other.

John Diamond, Baron Diamond: John Diamond, Baron Diamond PC (30 April 1907, Leeds – 3 April 2004, Chalfont St Giles), also known as "Jack Diamond", was a British Labour Party politician.

Bernard Manning: Bernard John Manning (13 August 1930 – 18 June 2007) was a British comedian and nightclub owner.

Four Seasons Centre: The Four Seasons Centre for the Performing Arts is a 2,071-seat theatre in Toronto, Ontario, Canada, located at the southeast corner of University Avenue and Queen Street West, across from Osgoode Hall.  The land on which it is located was a gift from the Government of Ontario.  It is the home of the Canadian Opera Company (COC) and the National Ballet of Canada.  The building's modernist design by was created by Canadian company Diamond and Schmitt Architects, headed by Jack Diamond.  It was completed in 2006.  The design includes an unusual glass staircase.

Jack Diamond (radio personality): Jack Diamond is a radio personality, who is well known for hosting mornings at WRQX in Washington, DC for nearly 24 years.

The Comedians (1971 TV series): The Comedians is a British television show of the 1970s (later reprised in the mid-1980s and early 1990s) produced by Johnnie Hamp of Granada Television.  The show gave a stage to nightclub and working men's club comedians of the era, including Russ Abbot, Lennie Bennett, Stan Boardman, Jim Bowen, Jimmy Bright, Duggie Brown, Mike Burton, Jimmy Jones, Dave Butler, Brian Carroll, Frank Carson, Mike Coyne, Jimmy Cricket, Colin Crompton, Pauline Daniels, Charlie Daze, Vince Earl, Steve Faye, Eddie Flanagan, Stu Francis, Ken Goodwin, Jackie Hamilton, Jerry Harris, George King, Bobby Knutt, Bernard Manning, Mike McCabe, Paul Melba, Mick Miller, Hal Nolan, Tom O'Connor, Tom Pepper, Bryn Phillips, Mike Reid, George Roper, Harry Scott, Sammy Thomas, Johnny Wager, Roy Walker, Charlie Williams, Lee Wilson and Lenny Windsor.

Rink Design Partnership: Rink Design Partnership was an architectural firm in Jacksonville, Florida.  The firm's best known work may be the University of North Florida Student Union building.  It was listed as one of Florida's top 100 buildings by the American Institute of Architects.  The firm was in business for about 25 years and closed in 2010 over financial issues.  Jack Diamond, known as "Mr. Downtown", was the firm's senior principal.  Other principals were Glenn Dasher, Craig Davisson and Tom Hurst In 2010, Diamond opened a new firm called Diamond Architectural Group.

Supporting paragraphs: Jack Diamond (comedian) Bernard Manning
Answer: comedian