Among the aliens at the bar on Pernaia's moon was a Kreetassan, several Klingons, several members of the shapeshifting species from Two Days and Two Nights (2002), and a member of Kago-Darr's species.
When Tucker impersonates Captain Archer, he wears a fourth rank pip to signify the rank of captain, but does not change into a gold-trimmed command division uniform, instead staying in his red-trimmed operations division uniform.
It seems Menos was working for the Axanar - the "good guys" from Fight or Flight (2001) - as most of his cargo containers have the Axanar written language on them.
David Richards reprises his role of the Markalian dockmaster from "Broken Bow deleted scene 092" which is on the Season 1 DVD extras.