As far as I am aware the BBC own the programme rights. However specific character/creatures are owned by their creators. For example the Daleks creator was Terry Nation. The rights to the Daleks are owned by the Nation Estate and the BBC had to pay for the right to be able to use them in the series.
Samuel Beckett's estate owns the copyrights and the estate is currently run by his nephew.
Brentwood-Benson.
US TREASURY!!!
Random House.
Little Ruby Tunes.
Frances Bean Cobain does.
Abbott and Costello Enterprises.
Which one? There appear to be at least three songs by this name.
Warner Tamerlane and Sony/ATV Songs.
Various songs are controlled by various companies and individuals.
InuYasha characters and images can be licensed through Viz Media.
You Be illin' is administered by Warner Chappell.