Who portrayed Black Panther/T'Challa in the Marvel Cinematic Universe?

Chadwick Boseman

In Disney's "Bolt", who is Bolt's chief companion, a sarcastic street cat? What Christmas decoration means 'little dung twig' in Old English? Which animals communicate with each other using infrasound frequencies humans cannot hear? What term refers to riders ensuring their horse clears a jump without penalties in equestrian events? What famous classic black-and-white vampire film was released in 1922?