Are they by any chance related? I think we should be told.

Franz Liszt
William Hartnell (as Dr Who)

Come to think of it ...

Richard Wagner

Jon Pertwee (the Third Doctor)

and even ...

Ludwig van Beethoven

Colin Baker (the Sixth Doctor)

This one is perhaps a little more tenuous ...

Pierre Schaeffer

Patrick Troughton (the Second Doctor)

Now I'm really scraping the barrel ...

Gustav Holst

Peter Davison (the Fifth Doctor)

Ferruccio Busoni

Tom Baker (the Fourth Doctor)