The Unusual Inventions of Henry Cavendish (2005)

Hugh O'Conor

Mr. Henry Cavendish

Fiona O'Shaughnessy

Miss. Catherine Palmerston

Shaun Boylan

Hon. Salacious Sommerfield Smythe

Frank Kelly

Mr. Thomas Palmerston

Anna Nugent

Miss. Sarah Palmerston

Eileen Fennell

The Aunt

Ned Dennehy

Mr. Sommerfield Smyth's Man Servant

Serena Brabazon

Miss Emille Carson

Eoin Whelan

Mr. Palmerston's Butler

Conor McMahon

Newspaper boy