The third season of “The Crown” welcomes a new cast as it tells the story of the modern British monarchy.

The series starts off in the swinging 1960s of London and Olivia Colman is Queen Elizabeth II. Helena Bonham Carter is Princess Margaret and Tobias Menzies is royal spouse Prince Philip.

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This combination of photos shows actor Tobias Menzies portraying Prince Philip, Duke of Edinburgh, in a scene from the third season of "The Crown," left, and Prince Philip at Idlewild Airport, now called John F. Kennedy International Airport, in New York in 1966. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

The third season of “The Crown” welcomes a new cast as it tells the story of the modern British monarchy.

This combination of photos shows actress Helena Bonham Carter, portraying Princess Margaret, in a scene from the third season of "The Crown," left, and Princess Margaret attending the Abbey Treasures Exhibition in the Norman Undercroft of Westminster Abbey in London on Jan. 13, 1966. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

The Associated Press has created a photo gallery to illustrate how some of the actors compare to the real figures.

This combination of photos shows actress Marion Bailey portraying Queen Elizabeth the Queen Mother in a scene from the third season of "The Crown," left, and Queen Elizabeth, the Queen Mother at the Royal Academy of Dramatic Art in London on Dec. 6, 1954. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actress Marion Bailey portraying Queen Elizabeth the Queen Mother in a scene from the third season of "The Crown," left, and Queen Elizabeth, the Queen Mother at the Royal Academy of Dramatic Art in London on Dec. 6, 1954. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actress Erin Doherty portraying Princess Anne in a scene from the third season of "The Crown," left, and Princess Anne arriving at the Royal Opera House in London on Feb. 29, 1968. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actress Erin Doherty portraying Princess Anne in a scene from the third season of "The Crown," left, and Princess Anne arriving at the Royal Opera House in London on Feb. 29, 1968. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actor Josh O'Connor portraying Prince Charles in a scene from the third season of "The Crown," left, and Prince Charles in London on March 25, 1968. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actor Josh O'Connor portraying Prince Charles in a scene from the third season of "The Crown," left, and Prince Charles in London on March 25, 1968. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actor Charles Dance portraying Lord Louis Mountbatten in a scene from the third season of "The Crown," left, and  Lord Mountbatten in London on April 22, 1955. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actor Charles Dance portraying Lord Louis Mountbatten in a scene from the third season of "The Crown," left, and Lord Mountbatten in London on April 22, 1955. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows British Prime Minister Harold Wilson during opening session of the Commonwealth Prime Ministers Conference at Marlborough House in London on Sept. 6, 1966, left, and actor Jason Watkins portraying Wilson in a scene from "The Crown." The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows British Prime Minister Harold Wilson during opening session of the Commonwealth Prime Ministers Conference at Marlborough House in London on Sept. 6, 1966, left, and actor Jason Watkins portraying Wilson in a scene from "The Crown." The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

Josh O’Connor and Erin Doherty join the cast as Charles and Anne, the grown offspring of Elizabeth and Philip. Casting and costuming were almost as crucial as the scripts by Peter Morgan.

This combination of photos shows actor Tobias Menzies portraying Prince Philip, Duke of Edinburgh, in a scene from the third season of "The Crown," left, and Prince Philip at Idlewild Airport, now called John F. Kennedy International Airport, in New York in 1966. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actor Tobias Menzies portraying Prince Philip, Duke of Edinburgh, in a scene from the third season of "The Crown," left, and Prince Philip at Idlewild Airport, now called John F. Kennedy International Airport, in New York in 1966. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

The Associated Press has created a photo gallery to illustrate how some of the actors compare to the real figures.

This combination of photos shows actress Helena Bonham Carter, portraying Princess Margaret, in a scene from the third season of "The Crown," left, and Princess Margaret attending the Abbey Treasures Exhibition in the Norman Undercroft of Westminster Abbey in London on Jan. 13, 1966. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actress Helena Bonham Carter, portraying Princess Margaret, in a scene from the third season of "The Crown," left, and Princess Margaret attending the Abbey Treasures Exhibition in the Norman Undercroft of Westminster Abbey in London on Jan. 13, 1966. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actress Marion Bailey portraying Queen Elizabeth the Queen Mother in a scene from the third season of "The Crown," left, and Queen Elizabeth, the Queen Mother at the Royal Academy of Dramatic Art in London on Dec. 6, 1954. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actress Marion Bailey portraying Queen Elizabeth the Queen Mother in a scene from the third season of "The Crown," left, and Queen Elizabeth, the Queen Mother at the Royal Academy of Dramatic Art in London on Dec. 6, 1954. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actress Erin Doherty portraying Princess Anne in a scene from the third season of "The Crown," left, and Princess Anne arriving at the Royal Opera House in London on Feb. 29, 1968. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actress Erin Doherty portraying Princess Anne in a scene from the third season of "The Crown," left, and Princess Anne arriving at the Royal Opera House in London on Feb. 29, 1968. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actor Josh O'Connor portraying Prince Charles in a scene from the third season of "The Crown," left, and Prince Charles in London on March 25, 1968. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actor Josh O'Connor portraying Prince Charles in a scene from the third season of "The Crown," left, and Prince Charles in London on March 25, 1968. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actor Charles Dance portraying Lord Louis Mountbatten in a scene from the third season of "The Crown," left, and  Lord Mountbatten in London on April 22, 1955. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows actor Charles Dance portraying Lord Louis Mountbatten in a scene from the third season of "The Crown," left, and Lord Mountbatten in London on April 22, 1955. The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows British Prime Minister Harold Wilson during opening session of the Commonwealth Prime Ministers Conference at Marlborough House in London on Sept. 6, 1966, left, and actor Jason Watkins portraying Wilson in a scene from "The Crown." The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)

This combination of photos shows British Prime Minister Harold Wilson during opening session of the Commonwealth Prime Ministers Conference at Marlborough House in London on Sept. 6, 1966, left, and actor Jason Watkins portraying Wilson in a scene from "The Crown." The popular series based on the British royal family debuts Sunday on Netflix. (Netflix, left, and AP Photo)