Gaptooth

50 years ago today, Jack Bligh appeared as Gaptooth in episode 4 of the Doctor Who story The Smugglers. 
Born on 31 December 1889, Bligh is the earliest born person in Doctor Who. (Some online sources say he was born in 1890, but that's the year his birth was registered; he's listed in the registrations for the Thanet area for the first quarter of 1890.)
Sadly, the four episodes of The Smugglers are among the 97 episodes of Doctor Who missing from the BBC archive. But here are three off-air images ("tele-snaps") showing Gaptooth - from the "photonovel" on the official Doctor Who website: