How do you say Logan in Japanese?

ローガン It is pronounced "ROOGAN". (Consonants are pronounced more or less the same way as in English. "A" sounds like a in father, but shorter. "O" sounds like o in old. Double vowels like "OO" are held for twice the duration of single vowels.) or if you want to get real technical, you could research the meaning of you name, Logan meaning "Hollow" and translate that in Japanese: Hollow- Utsuro Utsuro in kanji is 中空