Doctor Who's David Tennant and Peter Davison battled it out at the Wales Comic Con as one accused the other of being 'not that special'.
David and Peter, who both played the Time Lord in the BBC hit sci-fi series, are also related through David's wife Georgia - who happens to be Pete's daughter.
Despite their family connections, Peter decided to protest against his son-in-law after he appeared at the event in Telford.
