At a fancy dress party in Bromley, Dean referred to a Neanderthal as "Captain Caveman". (PROSE: Only Human [+]Gareth Roberts, BBC New Series Adventures (BBC Books, 2005).)
Donna Noble affectionately called Ig "Captain Caveman" as she said goodbye to him. (COMIC: Untitled [+]Alan Barnes, DWM Comics (Panini Comics, 2023).)