Question: What is the name of the American entertainer that was born as Joseph Gottlieb and featured in the film based on the real life U.S. Army Delta Force unit?

Context articles: Delta Force 2: The Colombian Connection
Delta Force
Tom Clancy's Ghost Recon
The Unit
Joey Bishop
Task Force 121
Abu Sayyaf (ISIL leader)
Eric L. Haney
Charles Alvin Beckwith
The Delta Force

Delta Force 2 (also known as Delta Force 2: The Colombian Connection and Delta Force 2: Operation Stranglehold) is a 1990 American action film, and a sequel to the 1986 Chuck Norris film "The Delta Force", also starring Norris as Major Scott McCoy.
 In this film, McCoy leads his Delta team into the fictional South American country of San Carlos to rescue hostages and stop the flow of cocaine into the United States.
The 1st Special Forces Operational Detachment-Delta (1st SFOD-D), commonly referred to as Delta Force, Combat Applications Group (CAG), "The Unit", Army Compartmented Element (ACE), or within JSOC as Task Force Green, is an elite special mission unit of the United States Army, under operational control of the Joint Special Operations Command.
 The unit is tasked with specialized missions primarily involving hostage rescue and counterterrorism, as well as direct action and special reconnaissance against high-value targets. Delta Force and its maritime counterpart, the U.S. Navy's SEAL Team Six (also known as "DEVGRU"), are the U.S. military's primary counterterrorism units.
 Delta Force and DEVGRU perform the most highly complex, classified, and dangerous missions in the U.S. military, as directed by the U.S. National Command Authority.
Tom Clancy's Ghost Recon is a series of military tactical shooter video games published by Ubisoft.
 In the series, the player is in charge of a fictional, newly conceived squad of U.S. Army Special Forces soldiers from Delta Company, 1st Battalion, 5th Special Forces Group (5th SFG) stationed at Fort Bragg, North Carolina.
 Except for the "1st Battalion, 5th SFG" designation, this reconnaissance unit is entirely fictional, as Special Forces Battalions currently only support three Companies (A, B and C).
 They are often referred to as "the Ghosts".
 Their role is not unlike other real world special operations forces, in that their operations are kept highly classified.
 In "", it is shown that the Ghost's unit has multiple designations and is part of JSOC and is also known as the Group for Specialized Tactics (or GST—where the term "Ghost" comes from) much like real JSOC units like Delta Force (1st SFOD-D or CAG) and SEAL Team Six (or DEVGRU).
The Unit is an American action-drama television series that aired on CBS from March 7, 2006, to May 10, 2009.
 The series focuses on a top-secret military unit modeled after the real-life U.S. Army special operations unit commonly known as Delta Force.
Joseph Abraham Gottlieb (February 3, 1918 – October 17, 2007), known professionally as Joey Bishop, was an American entertainer who appeared on television as early as 1948 and eventually starred in his own weekly comedy series playing a talk show host, then later hosted a late night talk show.
 He later became a member of the "Rat Pack" with Frank Sinatra, Peter Lawford, Sammy Davis, Jr., and Dean Martin.
Task Force 121 was a United States Department of Defense special operations task force.
 TF121 was a multi-service force from Joint Special Operations Command, made up of operators from the U.S. Army's Delta Force, 75th Ranger Regiment, and 160th Special Operations Aviation Regiment, the U.S. Navy's SEAL Team Six ,the CIA's Special Activities Division, U.S. Air Force Combat Controllers, Pararescuemen, Tactical Air Control Party operators, and Special Operations Weather Technicians, the Aviation Tactics Evaluation Group (AvTEG), and the Joint Communications Unit.
 Two Troops from the U.S. Army 1st Squadron, 1st Cavalry Regiment provided armor support for the Task Force.
Abu Sayyaf is the "nom de guerre" of a senior leader of the Islamic State of Iraq and the Levant (ISIL) who was described as overseeing gas and oil operations.
 United States authorities identified Abu Sayyaf's real name as Fathi Ben Awn Ben Jildi Murad al-Tunisi.
 Abu Sayyaf was killed on the night of May 15–16, 2015 while resisting capture during a United States Army Delta Force operation in eastern Syria.
Eric L. Haney (born August 22, 1952) is a retired member of the United States Army counterterrorist unit, the 1st Special Forces Operational Detachment-Delta (1SFOD-D), more commonly known as Delta Force.
 In recent years he has been writing on terrorism, guerrilla warfare, and special operations.
 Haney is the author of "Inside Delta Force", a memoir of his time in the elite unit, in which he also writes about his participation in the aborted 1980 Operation Eagle Claw mission to Iran to free American hostages.
Charles Alvin "Charlie" Beckwith (January 22, 1929 – June 13, 1994), known as Chargin' Charlie, was a career U.S. Army Special Forces officer best remembered as helping create Delta Force, the premier counter terrorism and asymmetrical warfare unit of the U.S. Army.
 He served in the Malayan Emergency and the Vietnam War, and attained the rank of colonel before his retirement.
The Delta Force is a 1986 Israeli-American action–thriller starring Chuck Norris and Lee Marvin (in his final film appearance) as leaders of an elite squad of Special Forces troops based on the real life U.S. Army Delta Force unit.
 It was directed by Menahem Golan and featured Martin Balsam, Joey Bishop, Robert Vaughn, Steve James, Robert Forster, Shelley Winters, George Kennedy, and an uncredited Liam Neeson in an early role.
 The film was produced in Israel.
 Two sequels were produced entitled "" and the direct-to-video "".
 "The Delta Force" was "inspired by" the hijacking of TWA Flight 847.