(in credits order)
- Martin Clunes(as Martin Clunes OBE, Damian Lewis OBE)
- Joan Collins(as Dame Joan Collins)
- Mohamed Farah(as Sir Mo Farah)
- Kelly Holmes(as Dame Kelly Holmes)
- David Jason(as Sir David Jason)
- Katherine Jenkins(as Katherine Jenkins OBE)
- Damian Lewis(as Damian Lewis OBE)
- Maureen Lipman(as Dame Maureen Lipman)
- Trevor McDonald(as Sir Trevor McDonald)
- Anthony McPartlin(as Anthony McPartlin OBE)
- Declan Donnelly(as Declan Donnelly OBE)
- Helen Mirren(as Dame Helen Mirren)
- Alan Titchmarsh(as Alan Titchmarsh MBE)
- Andrew Lloyd Webber(as Lord Lloyd Webber)
Rest of cast listed alphabetically
