Lucassen and fellow singers Anneke van Giersbergen, Damian Wilson, Edward Reekers, Edwin Balogh, Fish, and George Oosthoek returned to reprise their roles from the original album, alongside drummer Ed Warby and flutist Thijs van Leer.

After positive reactions to the Ayreon Universe shows, Lucassen decided to supervise a live version of Into the Electric Castle in a style similar to The Theater Equation, to celebrate the album's 20th anniversary.

Singers Anneke van Giersbergen, Damian Wilson, Edward Reekers, Edwin Balogh, Fish, and George Oosthoek returned to reprise their roles from the original album, alongside drummer Ed Warby and flutist Thijs van Leer; Lucassen also reprised his role as the Hippie, unlike in The Theater Equation, in which he had been replaced by Jermain "Wudstik" van der Bog and only made a small appearance at the end.

[2][3] Actor John de Lancie, of whom Lucassen was a long-time fan due to De Lancie's role as Q in Star Trek: The Next Generation, was announced on 8 October 2018 as the playing the role of "The Voice" in the last performances, replacing Peter Daltrey from the original album.

The Gold Vinyl Edition does not contain the tracks "Robby Valentine (piano solo)", "Kayleigh", and "Speech by Arjen & Joost".