(written from a Production point of view)
Darryl D. Stewart is an actor who appeared as a Starfleet vice admiral in the Star Trek: Enterprise pilot episode "Broken Bow". As a background actor he received no credit for his appearance and was identified by the call sheet for the episode for which he filmed his scene on 5 June 2001 on Paramount Stage 18. Stewart's uniform was sold off on the It's A Wrap! sale and auction on eBay and was later worn by guest actor Gregory Itzin in the episode "In a Mirror, Darkly, Part II" and by Manny Coto in the episode "These Are the Voyages...". 
Stewart appeared as a detective in the crime comedy Bandits (2001) which also featured fellow Trek performers Peggy Miley, Richard Riehle, Gene LeBell, Scott Burkholder, John Harrington Bland, and Joey Box. In addition, he appeared in two episodes of the drama series Desperate Housewives. He first portrayed Gus, the janitor in the first season episode "There Won't Be Trumpets" in 2005 with Brenda Strong, Teri Hatcher, Steven Culp, Mark L. Taylor, Albie Selznick, and Chris Black, Larry Shaw, Junie Lowry-Johnson, Nicole DeFrancesco, Bruce Byall, and James Nordberg. In 2006 he appeared as a strip club patron in the second season episode "Everybody Says Don't" together with Brenda Strong, Teri Hatcher, Mark Moses, Jay Harrington, and Larry Shaw, Chris Black, Junie Lowry-Johnson, David Sibley, and Nicole DeFrancesco. Further featured parts include the fantasy action film Hancock (2008, with David Mattey, Akiva Goldsman, Elizabeth Dennehy, Gregg Daniel, and Tang Nguyen) in which he portrayed one of the hostages and the crime television series Sleeper Cell (2005-2007) on which he worked as stand-in for lead actor Michael Ealy.
More recently Stewart appeared in the Criminal Minds episodes "52 Pickup" (2009, with Joanna Cassidy and Cari Shayne) and "Corazon" (2011, with Rachel Nichols), the Switched at Birth episode "The Trial" (2012, with Lise Simms), an episode of the drama series Hart of Dixie, as an anesthetist in the superhero sequel Captain America: The Winter Soldier (2014, with Alan Dale, Zack Duhame, Pat Healy, Steven Culp, Cullen Chambers, and Tom Morello), and as a Trekkie in a TOS-style command division uniform in an episode of The Big Bang Theory (2018).