Names

I noticed a weird pattern with character's names on the show. Almost EVERYONE has the letter A as the second or third character in their name. Examples:

Jack
Kate
Sawyer
Sayid
Walt
Aaron
James (Ford)
Gale

Claire
Ana
Shannon
Charilie
Dharma

Plus the obvious Locke/Eko letter arrangment and the frequent use of the name "Tom".
This only contributes more to the theory involving Muptiple Personality Disorder, implying that they are all just one person (ala "Identity")?