The Deputy explores Bob Galway's life and work in the House of Commons and how it impacts on his personal life. Bob's a Deputy PM who is a man of the people - opinionated, principled and pragmatic. Surrounded by inefficient, highly-sexed private secretaries, a beleaguered Bob strives to protect his reputation, his career and his conscience as he tries to outsmart his adversaries in the cut and thrust world of Westminster.
| Actor | Role |
|---|---|
 Warren ClarkeBob Galway MP | Bob Galway MP |
 Dervla KirwanTerri Leonard | Terri Leonard |
 Jack DeeStephen Sharples MP | Stephen Sharples MP |
 David TennantChristopher Williams | Christopher Williams |
 Ace BhattiNickhall Gangwani | Nickhall Gangwani |
 Georgina RylanceElla Grappy | Ella Grappy |
 Jeff RawleGraham Hammond | Graham Hammond |
 Jaye GriffithsAngela Platt MP | Angela Platt MP |
 Philip McGinleyKarl Galway | Karl Galway |
 Diane KeenHilary Galway | Hilary Galway |
 Aneirin HughesAlan Newberry MP | Alan Newberry MP |
| LLydia BakshKatey Wells | Katey Wells |