Bio: Worked on the Howlett estate as groundkeeper. Often abused his son Dog, he may also be James Howlett's (Wolverine) real father after having a long affair with his mother.
*** ORIGIN ***
Thomas Logan is an abusive father who beats his son, nicknamed 'Dog, as often as look at him. Logan drank at all hours of the day and cursed at everyone he saw. He is the Howlett's groundskeeper. It is also found out that he is having an affair with Elizabeth Howlett. It is strongly implied that Logan is the father of James Howlett who eventually becomes better known as Wolverine.
After a few mishaps involving Dog, John Howlett fires Thomas Logan. Thomas then breaks in to the Howlett's home and tries to convince Elizabeth to run away with him while at the same time robbing the estate. John interrupts, and the two begin to fight. Thomas shoots John in the head. James sees it and kills Thomas.
Notes: Thomas Logan was created by Paul Jenkins, Joe Quasada and Andy Kubert and first appeared in Origin issue 1 (2001).