A performance of Joseph Haydn's Hour Symphony is interrupted several times within half an hour.
| Actor | Role |
|---|---|
| CCees SchouwenaarWim de Vries | Wim de Vries |
 Clous van MechelenHenk Bersma | Henk Bersma |
| KKatelijne HoorwegIrma Bongers | Irma Bongers |
| JJan VreekenJohn Visser | John Visser |
 Walter KousJohan Perrier | Johan Perrier |
| JJ.C. RisPim van der Wiel | Pim van der Wiel |
| HHerman WeigmansMusicus 1 | Musicus 1 |
| GGuus HautvastMusicus 2 | Musicus 2 |
| IIneke Ter WindtMusicus 3 | Musicus 3 |
| WW.L. SchippersQuatremains | Quatremains |
| MM.J. Schippers-BaarslagQuatremains | Quatremains |
| KKees SchilperoortNot listed | Not listed |
 Wim T. SchippersJacques Plafond | Jacques Plafond |
| JJan StulenNot listed | Not listed |