Roger Hodgson - Hai Hai

Backing Vocals - Anni McCann (tracks: A1, A3 to A5, B3 to B5) , Brad Lang (tracks: A2) , Clair Diament (tracks: A3) , Ken Allardyce (tracks: A3, B3) , Willie Hines (2) (tracks: A2)
Bass - Leland Sklar (tracks: B3) , Nathan East (tracks: A3, B1, B4, B5)
Drums - Carlos Vega (tracks: B2, B3) , Jeff Porcaro (tracks: A2 to A4, B1, B4) , Joseph Pomfret (tracks: A1, A4, B1 to B3) , Omar Hakim (tracks: A1)
Electric Piano [Rhodes] - Robbie Buchanan (tracks: B1)
Electronic Drums [Fairlight], Synthesizer - Rhett Lawrence (tracks: B5)
Electronic Drums [Synclavier] - Albhy Galuten (tracks: A5) , Bruce Albertine (tracks: A5)
Engineer - Jack Joseph Puig
Engineer [Assistant] - Bart Stevens , Dan Garcia , Julie Last , Steve Ford , Wade Jaynes
Engineer [Assisted By] - Ken Allardyce
Guitar - Dan Huff (tracks: A1, A3, A5 to B5)
Guitar [Rhythm] - Ken Allardyce (tracks: A3)
Harmonica - Ken Allardyce (tracks: A1, A5)
Keyboards - Robbie Buchanan (tracks: A3 to A5, B4)
Mastered By - Doug Sax
Mixed By - Bill Schnee , Jack Joseph Puig
Percussion - Jeff Porcaro (tracks: A4) , Joseph Pomfret (tracks: A4) , Lenny Castro (tracks: A1 to B1, B3 to B5)
Producer - Jack Joseph Puig , Roger Hodgson
Programmed By [Fairlight] - Rhett Lawrence (tracks: A5, B3)
Programmed By [Synth] - Eric Persing (tracks: A4 to B1) , Larry Williams (tracks: B2) , Robbie Buchanan (tracks: A4, B1, B5) , Steve Porcaro (tracks: A2)
Saxophone - Larry Williams (tracks: A3, B4) , Marc Russo (tracks: B3)
Songwriter - Rick Davies (tracks: B3) , Roger Hodgson
Synthesizer - Robbie Buchanan (tracks: A1, B1)
Synthesizer [Bass And Brass], Organ [Hammond] - David Paich (tracks: A2)
Synthesizer [Bass] - Robbie Buchanan (tracks: A5)
Synthesizer [Bass], Piano, Synthesizer, Guitar, Backing Vocals, Keyboards, Electronic Drums [Synclavier], Bass, Guitar [12-string] - Roger Hodgson
Synthesizer [Dx7 Seetar Solo] - Mikail Graham (tracks: A3)