Broadway legend Carole Cook suggested that President Donald Trump should be assassinated when she jokingly asked where John Wilkes Booth was when people needed him.

The 94-year-old actress referred to Booth - the man behind Abraham Lincoln's assassination - when questioned about President Trump by TMZ in Los Angeles on Sunday night.

'Where is John Wilkes Booth when you need him?' Cook said referring to the actor who shot dead Lincoln in Washington DC in 1865.

Broadway legend Carole Cook suggested Sunday that President Donald Trump should be assassinated when she jokingly asked where John Wilkes Booth was when people needed him

Cook made the comments after being approached outside a West Hollywood restaurant and asked about a recent Broadway performance of Frozen that made headlines.

An audience member had held up a 'Trump 2020' banner during the curtain call in New York last week when performer Timothy R Hughes was filmed grabbing the sign and tossing it away.

When asked for her thoughts, Cook and her actor husband Tom Troupe said they hadn't heard about the incident involving the Trump supporter.

Cook then followed up with her comment about Lincoln's assassin.

Her husband chimed in after saying: 'He killed presidents'.

Cook responded: 'Don't say that. They'll get me for that. They won't see - no. Where is he when you need him?'

The 94-year-old actress referred to Booth - the man behind Abraham Lincoln's assassination - when questioned about President Trump on Sunday night

Cook and her actor husband Tom Troupe were asked for their thoughts about the Trump supporter at the Broadway Frozen show when they joked about the President

When asked if President Trump should be killed, Cook said: 'Why not?'

She followed up and asked if the comment would result in her being put on the 'enemies list'.

'My God, I hope so,' she said. 'Just keep me out of jail, or maybe not.'

The Secret Service told DailyMail.com they were aware of the comment made by Cook.

'While we do not confirm or comment on the absence or existence of specific investigations we can say that we investigate all threats against the President,' a Secret Service spokesman said.

The Secret Service investigates threats made against the President. They questioned comedian Kathy Griffin last year after she posed with a prop that appeared to be Trump's severed head.

The Broadway incident with the Trump supporter that sparked the questions for Cook took place last Wednesday.

Timothy R Hughes, an actor in the Broadway musical Frozen, has said he will not apologize for ripping a 'Trump 2020' banner away from an audience member after a show last week

Hughes - who portrays the character Pabbie in the Disney production - shared a clip of himself grabbing the Trump 2020 sign and throwing it off the stage.

He went on to call the audience member a 'disrespectful man trying to interrupt this moment with a pathetic political platform'.

'What does it say about our country and politics when a man at the show tonight felt the need to protest Disney’s Frozen on Broadway with a pro Trump flag??

'How frightening is it that our show’s messages of love, acceptance, and diversity have become the opposition to supporting Trump?

'The curtain call is a thank you between actors and audience, a final connection to end a shared experience. I will not apologize for how I responded to the disrespectful man trying to interrupt this moment with a pathetic political platform. Not at our show! Not in front of my beautiful, diverse, talented cast.'