Lightman (Tim Roth, R) works against an old rival (guest star James Marsters, L) on a case in an upcoming episode of "Lie to Me." ©2009 Fox Broadcasting Co. Photo: Isabella Vosmikova, courtesy of Fox.

Changes are in store for the television drama, Lie to Me, beginning with its new Monday night timeslot following House.  But, according to series star, Tim Roth, that’s not the only development.

Over the course of the second season more about what makes his character, Lightman, tick will emerge including what prompted him start the service in the first place.

Lie to Me airs Mondays, 9:00 p.m. ET/PT on Fox.