Anthony Daniel Kenny?
ADK

I was going to go with "A Dark Knight" or perhaps "A Daring King". Now I see xbigboy is already onto the Dark Knight track too. Maybe "American Dark Knight"?

Kirk, Karklins, Knickerbocker ? Kansas, Kent, Kouper, Kruger, Kiwi, Kickapoo ?
Knot, Kim, Kirby, Knader, Kangaroo ?

Possiblities of K: 5^26, or approximately 1,490,118,000,000,000,000,000,000 or 1.49 septillion... this will take a while...

no, it's only 4^26. We know the first letter is K.
Ah that means;
Possibilties of K: 4^26, 5,599,359,200,000,000,000,000 +1 or 5.59 sextillion... this will take a while...

let's start... after K, there can be: (this will be long)
aaaa
aaab
aaac
aaad
aaae
aaaf
aaag
aaah
aaai
aaaj
aaak
aaal
aaam
aaan
aaao
aaap
aaaq
aaar
aaas
aaat
aaau
aaav
aaaw
aaax
aaay
aaaz
aaba
aabb
aabc
aabd
aabe
aabf
aabg
aabh
aabi
aabj
aabk
aabl
aabm
aabn
aabo
aabp
aabq
aabr
aabs
aabt
aabu
aabv
aabw
aabx
aaby
aabz
aaca
aacb
aacc
aacd
aace
aacf
aacg
aach
aaci
aacj
aack
aacl
aacm
aacn
aaco
aacp
aacq
aacr
aacs
aact
aacu
aacv
aacw
aacx
aacy
aacz
That is 78 possibilites. Any correct?

@ xbigboy lol by the time you finish this you are gonna be very old !!
might as well keep going... LOL

This is a few of the "logical" possibilties. (LONG)
Karne
Kells
Kento
Kenro
Kenny
Kelts
Karnt
K'dog (ROFL)
Katch
Karod
Kaspa
Karpo
Kello
Karto
Kalam
Karol
Katan
Karee
Kerty
Kerpi
Kimps
Kiros
Kinoo
Kiats
Katso
Kasta
Karma
Kerry
Kerti
Kenno
Kenna
Kenro
Kenni
Kawsh
Kashi
Kasho
Kashe
Karly
Kinko
Kinte
Kites
Kinot
Knots
Kraut
Kimap
Kinns
Kiuan
Koala
Keres
Kents
Kamil
Kamik
Krabs
Karbs
sK8er (ROFL)
Kallo
Kelps
Kelpi
Kelsi
Kahno
Karor
Kinza
lol, any right?
This one is the HARDEST.
(NO MORE HINTS, THAT IS, UNLESS EVERYONE IS COMPLETELY STUMPED).
ADK