Different group as a whole from transgenders; however, there is a portion of participants from that group that range from peripherally transgendered to outright post-operative transsexuals. There are many different subsets within the fetish crowd: B & D (bondage & discipline), Leather (including Rubber & PVC wear), Fantasy, and Role Playing (which includes the dominants and the submissives). There are some who are not full-time transgenders who will participate in any of these categories and include some cross-gendered aspect to it.
For folks who identify as, or are full-time transgenders; this is basically a fantasy adventure from the everyday. However, those who do not openly identify themselves as transgender will adopt either a dominator/dominatrix look and role, or most often, a "sissy" or submissive role. (Picture the Type-A banker who dons a French maid outfit on the weekend). Their outfits are worn mostly in private, virtually never to be seen in public - especially for the closeted "occasional" type. While many occasional fetishists don"t identify as transgendered, there is at some level a fascination with the role of the opposite gender, repressed or otherwise.