 Kevin KlineCole Porter | Cole Porter |
 Ashley JuddLinda Porter | Linda Porter |
 Jonathan PryceGabriel | Gabriel |
 Kevin McNallyGerald Murphy | Gerald Murphy |
 Sandra NelsonSarah Murphy | Sarah Murphy |
 Allan CordunerMonty Woolley | Monty Woolley |
 Peter PolycarpouLouis B. Mayer | Louis B. Mayer |
 Keith AllenIrving Berlin | Irving Berlin |
 James WilbyEdward Thomas | Edward Thomas |
 Kevin McKiddBobby Reed | Bobby Reed |
 Caroline O'ConnorEthel Merman | Ethel Merman |
 Dean ConstantinHotel Porter | Hotel Porter |
 Peter JessopDiaghilev | Diaghilev |
 Angie HillEllin Berlin | Ellin Berlin |
 Cole PorterMusical Performer - "You're The Top" | Musical Performer - "You're The Top" |
 Robbie WilliamsMusical Performer - "It's De-Lovely" | Musical Performer - "It's De-Lovely" |
 Elvis CostelloMusical Performer - "Let's Misbehave" | Musical Performer - "Let's Misbehave" |
 Alanis MorissetteMusical Performer - "Let's Do It, Let's Fall In Love" | Musical Performer - "Let's Do It, Let's Fall In Love" |
 Sheryl CrowMusical Performer - "Begin the Beguine" | Musical Performer - "Begin the Beguine" |
 Mick HucknallMusical Performer - "I Love You" | Musical Performer - "I Love You" |
 Diana KrallMusical Performer - "Just One of Those Things" | Musical Performer - "Just One of Those Things" |
| VVivian GreenMusical Performer - "Love For Sale" | Musical Performer - "Love For Sale" |
 Lara FabianMusical Performer - "So In Love" | Musical Performer - "So In Love" |
| MMario FrangoulisMusical Performer - "So In Love" | Musical Performer - "So In Love" |
 Natalie ColeMusical Performer - "Ev'ry Time You Say Goodbye" | Musical Performer - "Ev'ry Time You Say Goodbye" |
| LLemarMusical Performer - "What Is This Thing Called Love?" | Musical Performer - "What Is This Thing Called Love?" |
 John BarrowmanMusical Performer - "Night and Day" | Musical Performer - "Night and Day" |
 Hélène CardonaClub Guest (voice) (uncredited) | Club Guest (voice) (uncredited) |
 Rene CostaClub Guest (uncredited) | Club Guest (uncredited) |
 Richard DillaneBill Wrather | Bill Wrather |
