LONDON — The actor Johnny Depp is the latest American entertainment figure to suggest — however jokingly, ironically or obliquely — the killing of President Trump.

Speaking on Thursday at the Glastonbury arts festival in southwest England, Mr. Depp asked the audience, “Can you bring Trump here?”

The remark was met with booing and jeering, and he continued: “You misunderstand completely. When was the last time an actor assassinated a president? I want to clarify: I’m not an actor. I lie for a living. However, it’s been awhile, and maybe it’s time.”

The words — which were condemned by the White House on Friday, and which Mr. Depp apologized for — were being interpreted as an allusion to the assassination of President Abraham Lincoln by John Wilkes Booth, an actor, in 1865.