Mark Kosakura
Mark Takeo Kosakura  is an actor and model who appeared as an Enterprise-D ensign in several episodes of . He received no credit for his appearances. Kosakura was scheduled to appear in the episode  as the engineer named  but on the revised call sheet he was replaced by fellow background actor Rachen Assapiomonwait. He was also scheduled to appear in the episode  in scenes on the bridge but was replaced by actor Greg Kishi. In addition to his on screen Star Trek contribution, Kosakura worked as stand-in for Garrett Wang on the  fourth season episode  and the fifth season episode .

Kosakura was born in Orange County, California and attended the Saddleback College in Mission Viejo, California. He studied acting and acting techniques under coaches such as Sal Romeo, R.J. Adams, and Cary-Hiroyuki and started to work in the entertainment industry in 1985.

Among his television work were featured parts in General Hospital, Erase the Hate, Planet X, Buzz L.A., Beverly Hills, 90210, and Carol & Company (1990). His film work includes the crime drama Black Rain (1989, with Stephen Root, Richard Riehle, Tim Kelleher, Keone Young, and Chris Nelson Norris), the horror film Terrorgram (1990, cinematography by Gregory Irwin), the comedy Dave (1993, with Frank Langella, Parley Baer, Stefan Gierasch, Stephen Root, Dendrie Taylor, Paul Collins, Peter White, Robin Gammell, and Dan Butler), the comedy Good Advice (2001, with Estelle Harris, John de Lancie, David Doty, Jonathan Breck, and Gary Combs), and the short film A.W.O.L. (2006, with stunts by Mark Chadwick and Scott Workman).

Beside his work in front of the camera, Kosakura is also a trained voice actor and model for television commercials and print campaigns. More recently, he worked as talent assistant on the television special The 20th Annual Movieguide Awards (2012, with Jimmy Bennett and Corbin Bernsen), as executive producer on the television series Seers of the Ninth Island (2014, written, directed, produced, and co-starring Sidney Liufau and featuring Garret Sato), and as actor on the short drama Song on Canvas (2015).

Star Trek appearances 
 
  (Season 4)

External links 
 
 
 
  – former official site

Performers
TNG performers
Stand-ins