List of unnamed Tygarians.
Bar patron on Dessica II
This Tygarian was at the bar on Dessica II when Commander William T. Riker was searching for clues about the whereabouts of Captain Jean-Luc Picard in that establishment. He was sitting next to Deanna Troi at the bar when she talked to the alien bartender. (TNG: "Gambit, Part I")
Tygarian on the Promenade
This Tygarian, along with another of his species, frequently visited the Promenade of space station Deep Space 9. (DS9: "Cardassians")
This Tygarian was played by background actor Richard Sarstedt who received no credit for this appearance. 
Tygarian at Quark's
This Tygarian appeared at Quark's and helped refurnish the bar after all of Quark's possessions were confiscated by the Ferengi Commerce Authority. The Tygarian carried in a new table for the bar. (DS9: "Body Parts")
He was shopping with a bag on the promenade in early 2375 and visited Quark's Bar later. (DS9: "Image in the Sand")
Also in 2375 he visited the promenade several times. (DS9: "Chimera", "Inter Arma Enim Silent Leges")
This Tygarian was played by an unknown actor.
The call sheets for "Image in the Sand" and "Chimera" are listing him as "Greenhorn".
Tygarian with Tribbles
This Tygarian was seen in Quark's Bar petting two tribbles when the animals were accidentally introduced to the 24th century. (DS9: "Trials and Tribble-ations")