Yes. For example, Teacher Assistants can upload and place media in your course. However, the user who uploads the media remains its owner.
Kaltura also makes it possible for multiple users to share ownership to a media item uploaded to a course/My Media through the Collaboration tool, located in the Edit tab adjacent to the selected media inside your My Media library or through the Faculty Repository.
Contact firstname.lastname@example.org if you require a permanent change of ownership to a media.