My Own Private Star Trek
U.S.S. Warspite NCC-76704
Captain J. A. Seneca - Commanding Officer
Commander Portia Matthews - Executive Officer
Lieutenant Commander Parker Wolfe - Tactical Officer/Chief of Security
Lieutenant Commander Valeria Wolfe - Operations Officer
Commander Grev - Chief Engineering Officer
Dr. (Lieutenant) Elisabeth Chang - Chief Medical Officer
Lieutenant Isabella Machiavelli - Counselor
Lieutenant T'Por Nemcova - Conn Officer
Lieutenant Alidar Corin - Assistant Chief of Security
Ensign Willie Suh - Security Officer

Star Trek: Enterprise
"Broken Bow, Parts I and II" - "Shockwave, Part I"
"Shockwave, Part II" - "The Expanse"
"The Xindi" - (to date) "Twilight"

Everything Old is New Again
Humans - "Broken Bow, Part I" (ST, "The Cage")
Vulcans - "Broken Bow, Part I" (ST, "The Cage")
Klingons - "Broken Bow, Part I" (ST, "Errand of Mercy")
Andorians - "The Andorian Incident" (ST, "Journey to Babel")
Ferengi (name unknown) - "Acquisition" (TNG, "The Last Outpost")
Romulans - "Minefield" (ST, "Balance of Terror")
Tholians - "Future Tense" (ST, "The Tholian Web")*
Borg (name unknown) - "Regeneration" (TNG, "Q Who?")
Tellarites - "Bounty" (ST, "Journey to Babel")*

*it is worth remarking that though both the Tholians and the Tellarites have been referred to, prior to ST:E neither had actually been on screen since the original Star Trek

Also worth mentioning is the prequel paradox. The two main adversaries on Star Trek: Enterprise are the Suliban and the Xindi; because Enterprise is the latest series, obviously neither of them has ever been featured on any of the previously produced, though later in continuity, series. This, to my mind, poses a bit of a problem. We've seen the Vulcans on Enterprise, but also later in Kirk's 23rd century and Picard's 24th. The Romulans are a threat in Enterprise's 22nd century, as well as to the 23rd and 24th; the same is true of the Klingons. The Suliban and the Xindi are terrifying enemies for Captain Archer and the crew of the NX-01, but they pose no danger to later generations. I love Enterprise, but I have to admit this nags at me.