(written from a Production point of view)
This page contains information regarding Star Trek: Discovery, and thus may contain spoilers.
Wilson Cruz (born 27 December 1973; age 43) is the American actor who portrays Doctor Hugh Culber, rank of lieutenant commander, in Star Trek: Discovery.  His character is a medical officer of the USS Discovery and the love interest of Lieutenant Stamets, the character played by Anthony Rapp. 
Born in New York City with Puerto Rican heritage, he started his acting career by starring in the TV series My So-Called Life in 1994-1995. Cruz made his film debut in the 1995 biopic Nixon, surrounded by fellow alumni Robert Beltran, Bill Bolender, Richard Fancy, Annette Helde, Michelle Krusiec, Saul Rubinek, and Paul Sorvino. Cruz followed with the 1996 telefilm On Seventh Avenue, with Stephen Collins, Ronald Guttman, Josh Pais, and Anthony Zerbe. That year Cruz costarred in the sex comedy Johns, with Tony Epper. In 2005, Cruz appeared in Bam Bam & Celeste with John Cho. 2006 had Cruz in the comedy Coffee Date, costarring Leigh Taylor-Young. None of Cruz's later films made as much of a dent in the box office like his debut, but then Cruz was cast in the hit 2009 film He's Just Not That Into You, joined by Googy Gress and Cristine Rose.
More recently, he appeared in episodes of Shameless (2016), 13 Reasons Why, and Doubt (both 2017). That year, he also produced and appeared in a short movie called Billy's Blowjobs.