Charlie Brown
From Tardis Wiki, the free Doctor Who reference
During Donna Noble's brief transformation into a half-Time Lord, as her mind began to overload, she confused Charlie Chaplin with Charlie Brown immediately after suggesting that she and the Tenth Doctor go meet Chaplin. She immediately corrected herself, noting that this was not a feasible idea because Charlie Brown "was fiction". (TV: Journey's End)
Behind the scenes
The Doctor/Charlie Brown hybrid in The Glorious Dead.
Charlie Brown, the main protagonist of Peanuts comic strips, was referenced in the comic story The Glorious Dead where one of the Doctor's counterparts from parallel universes, Theta Stigma, resembles Charlie (while the Rani resembled Lucy van Pelt).
