Oolon Colluphid

Oolon Colluphid was the author of the book Origins of the Universe, which the Fourth Doctor had in his pocket and used as a way to pass the time while pinned down by fallen rubble. Paging through the book, the Doctor noted "He got it wrong on the first line!" and wondered "Why didn't he ask someone who saw it happen?". (TV: Destiny of the Daleks)

Behind the scenes
Oolon Colluphid was a reference to an alien author in Douglas Adams' then-upcoming novel The Hitchhiker's Guide to the Galaxy. Adams served as script editor for Destiny of the Daleks and inserted the reference himself.