Monologist Mike Daisey, whose dramatic inventions in “The Agony and the Ecstasy of Steve Jobs” ignited controversy when they came to light this year, has signed on to be part of a panel discussing documentary theater, activism, and onstage truth June 23 in Boston.

Moderated by Emily Mann, director of the current Broadway revival of “A Streetcar Named Desire,” the talk will take place at the national conference of Theatre Communications Group. Also slated to be on the panel are playwright Nilaja Sun (“No Child . . . ’’); KJ Sanchez, who heads the New York theater company American Records; and director Ping Chong (“Blind Ness”).