[HPforGrownups] The case for Dudley, the Latent Wizard

[James Sharman]

No: HPFGUIDX 83775

Ali Wrote:
 
 JKR has told us that someone will find magic late in life. To date, 
there appear to be only 4 people who could credibly find this gift. 
They are Filch, Arabella Figg, Dudley and Petunia.
 
[Big snip] 

For Petunia to witness Dudley discovering that he is a wizard would 
surely be one of her worst fears confirmed. I think that she would 
do almost *anything* to stop Dudley entering the WW.
 
SilentJim Adds: 

Your suggestion is certainly very interesting and the possibility of Dudley
being a latent wizard could have been very interesting. However I believe it
goes against cannon. We know anyone with the slightest hint of magic is able
to see Dementors and Dudley did not.