Star Trek: Deep Space Nine S00 E109 Section 31: Hidden File 02 (S07)

"At the edge of the Final Frontier, the Universe's greatest mystery is about to unfold."

Jeffrey Combs (Brunt/Weyoun/Tiron/Shran/Penk/Krem) interview (regarding the variety of characters he has played over the years, in particular Brunt and Weyoun)