ClivePwned
Member
The writers of the original series own the copyright to characters they created, including creatures. Hence, Robert Holmes gets credited whenever Autons, Sontarans and Strax are used, Robert Banks Stewart for Zygons, Kit Pedler and Gerry Davis for Cybermen, etc.
Occasionally writers also have rights to certain companions, particularly the ones that weren't originally meant to be companions but joined the TARDIS at the last minute, like K-9, Nyssa and Jamie.
Occasionally writers also have rights to certain companions, particularly the ones that weren't originally meant to be companions but joined the TARDIS at the last minute, like K-9, Nyssa and Jamie.