Backing Vocals – Carlena Williams, Dara Bernard, Mary Bernard
Baritone Saxophone – Joe Romano (2)
Bass – Sal Guglielmi
Bass Trombone – Dick Hyde
Cello – Robert L. Adcock, Victor Sazer
Clavinet, Synthesizer – Greg Mathieson
Drums – Keith Forsey, Richard Adelman
Engineer – Gary Ladinsky, Jürgen Koppers, Steven D. Smith
Graphics – Gribbitt!, Henry Vizcarra, Stephen Lumel
Keyboards – Doug Livingston
Lead Guitar – Michael Warren*
Mastered By – Brian Gardner (tracks: A1 to B6, D1a to D1d), CB* (tracks: C1 to C4)
Percussion – Bob Conti, Ken Park
Photography By – Francesco Scavullo
Photography By [Assistant] – Sean Byrnes
Producer – Giorgio Moroder, Pete Bellotte
Rhythm Guitar – Peter Woodford
Synthesizer – Virgil Weber
Tenor Saxophone – Don Menza
Trombone – Bruce Paulson, Bob Payne*
Trumpet – Bobby Shew, Dalton Smith, Rich Cooper
Viola – Alfred Barr, Leonard Selic
Violin – Jay Rosen, John Santulis, Lya Stern, Mari Tsumura, Pauel Farkas*, Teri Schoerbrua
Written-By – Donna Summer (tracks: A1 to B3, B6, C1 to C3, D1b, D1c), Giorgio Moroder (tracks: A1 to A6, B2, B3, C1 to C3, D1b, D1c), Pete Bellotte (tracks: A1 to A6, B2, B3, C1 to C3, D1b, D1c)