He was featured in the limited series Origin, which detailed the youth and formative years of Wolverine and was published from November 2001 to July 2002.

He is the father of Dog Logan, but his exact date of birth is unknown[volume & issue needed].

Thomas has a violent temper, a mean disposition, flies into uncontrollable rage, and is envious of the Howletts and their great fortune[volume & issue needed].

[volume & issue needed] The series hints that he and Elizabeth Howlett have been involved in a secret, romantic relationship for years.

However, since the mini-series, there have been several one shot issues of the 'Official Handbook of the Marvel Universe released since 2004 that each contain a profile on Wolverine.

When young James Howlett first uses his claws and kills Thomas, a horrified Elizabeth exclaims "not again, not you James...", subtly referring to the scars on her back that she received from her first son, John Howlett III, who died a mysterious death, which are shown when Rose walks in on Elizabeth.

Thomas Logan appears in the Wolverine: Origin motion comic, voiced by Brian Drummond.