Исполнители
Вокалисты:
Bob Catley (Magnum) – Forever
Tom S. Englund (Evergrey) – Forever
Anneke van Giersbergen (ex-The Gathering)– Forever
Daniel Gildenlöw (Pain of Salvation) – Forever
Liselotte Hegt (Dial) – Mr. L's nurse on "The Truth is in Here"
Floor Jansen (After Forever) – Forever
Hansi Kürsch (Blind Guardian) – Forever
Jørn Lande (Masterplan) – Forever
Steve Lee (Gotthard) – Forever
Arjen Anthony Lucassen – Mr. L on "The Truth is in Here", and backing vocals on "Connect the Dots"
Magali Luyten – Forever
Jonas Renkse (Katatonia) – Forever
Simone Simons (Epica) – Simone on "Web of Lies"
Ty Tabor (King's X) – an average middle-class worker on "Connect the Dots"
Marjan Welman – a 21st-century scientist on "E=mc2"
Wudstik – a 21st-century scientist on "E=mc2"
Phideaux Xavier – PX on "Web of Lies
Инструменталисты:
Tomas Bodin (The Flower Kings) – соло на синтезаторе в "Waking Dreams"
Joost van den Broek (After Forever) – synthesizer solo and piano on "The Sixth Extinction"
David Faber – cellos
Jeroen Goossens – flute; soprano and tenor recorder on "The Truth is in Here"; bass flute on "Unnatural Selection"; tin whistle on "River of Time"
Lori Linstruth – гитарное соло в "Newborn Race"
Arjen Anthony Lucassen – гитара, бас-гитара, манлолина, клавишные, синтезаторы, Hammond, and Solina
Ben Mathot – violins
Michael Romeo (Symphony X) – гитарное соло в "E=mc2"
Derek Sherinian (ex-Dream Theater) – соло на синтезаторе в "The Fifth Extinction"
Ed Warby – ударные, перкуссия
