Rudolf Martin
Rudolf Martin  is the German-born actor who played Ravis in the  first season episode . 

Outside of Star Trek, Martin has had recurring roles on the television series 24 and NCIS. On the former, he has worked alongside fellow Trek performers Penny Johnson, Zach Grenier, Glenn Morshower, Jeff Ricketts; on the latter, he has worked with the likes of Alan Dale and Tim Kelleher, and his character's father was played by Michael Nouri. Prior to this, Martin was a regular on the soap opera All My Children, playing Anton Lang from 1993 through 1996. He also appeared in such films as High Art (1998), Bedazzled (2000), and Swordfish (2001).

Martin played the role of Dracula in the Buffy the Vampire Slayer episode "Buffy vs. Dracula" and Vlad the Impaler, the real-life inspiration for Dracula, in the television movie Dark Prince: The True Story of Dracula, co-starring fellow Enterprise guest actor Peter Weller. His other television credits include guest appearances on Sliders, CSI, Crossing Jordan, and Nikita (with Melinda Clarke).

More recently, Martin reprised his role as Ari Haswari in a 2012 NCIS episode, with Tim Kelleher, and appeared in an episode of The Mentalist (2012, with Andrew Borba). Film work includes the fantasy film Taking Capellera (2012), the thriller Three Holes, Two Brads, and a Smoking Gun (2012), the horror thriller Bela Kiss: Prologue (2013), and the short drama The Collector (2013

External links 
 RudolfMartin.com – official site
 
 

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Performers
ENT performers