David M. Barrett made his Discovery directing debut with "Magic to Make the Sanest Man Go Mad," but it was not his Trek debut, as he helmed the "Divergence" episode of Enterprise back in 2005. Hailing from California, he started out as a stuntman before becoming a second unit director. Barrett then moved into producing and directing, and counts among his dozens of directing credits FreakyLinks, Veronica Mars, Cold Case, NCIS: Los Angeles, V, Castle, The Mentalist, Under the Dome, Blue Bloods and Zoo. 

Milton Barnes is the Canadian actor who played Deck Crew #1 in the Star Trek: Discovery episode "Magic to Make the Sanest Man Go Mad" and later Dock Crew #1 in “Runaway,” the first Star Trek: Short Treks episode His film and TV credits date back more than 20 years and span from Due South, Covert Affairs, Tumbletown Tales, Total Recall and Pacific Rim to Dark Matter, The Strain, The Expanse, and Suits.

As the U.S.S. Discovery crew attempts to let loose at a party, an unwelcome visitor comes aboard bringing about a problematic and twisted sequence of events.

Dancer/actor/model/poet Izaak Smith played the Jogger in the Star Trek: Discovery episode, "Magic to Make the Sanest Man Go Mad." Since reaching the top six in the first season of So You Think You Can Dance Canada, back in 2008, he has amassed such television and film credits as Percy Jackson & The Olympians: The Lightning Thief, Lost Girl, The Listener, Rise, Covert Affairs, Aaliyah: The Princess of R&B and Kim's Convenience. 

(Portrayed by Peter MacNeill).

The arms dealer was also the father of Harry Mudd's fiance, Stella. Grimes offered a reward to find Mudd after he disappeared with Stella's dowery.  

(Portrayed by Ronnie Rowe Jr.).

Communications specialist on the U.S.S. Discovery.

Veteran Canadian actor Peter MacNeill portrayed Barron Grimes, the father of Harry Mudd’s (Rainn Wilson) beloved Stella (Katherine Barrell), in the Star Trek: Discovery episode, “Magic to Make the Sanest Man Go Mad.” MacNeill’s countless credits date back to the early 1970s and span from Rabid, Crash, Rin Tin Tin: K-9 Cop, Stella (the Bette Midler film), Avonlea, Frequency (the movie), and Gene Roddenberry’s Earth: Final Conflict to Cinderella Man, A History of Violence, Queer as Folk, Defiance, Rookie Blue, and the ongoing Good Witch telemovies and series.

Katherine Barrell is the Canadian actor, producer and director who played Stella Grimes in the Star Trek: Discovery episode, “Magic to Make the Sanest Man Go Mad.” She studied at the prestigious George Brown Classical Theatre School and fell in love with the intricacy of film acting soon after graduation. Best known for her role as Officer Nicole Haught on Wynonna Earp, Barrell counts among her other television and film credits Lost Girl, Reign, The Scarehouse, My Ex, Workin’ Moms and Tin Star. 

Canadian actor Jason Deline portrayed the Medical Officer in the Star Trek: Discovery episode "Magic to Make the Sanest Man Go Mad." A television and film veteran, he's appeared in DeGrassi: The Next Generation, Warehouse 13, X-Men: Days of Future Past, Arrow and When We Rise.

Commonly called a space whale, gormaganders are a space-borne extremophile that spend their lives feeding on alpha particles in solar winds. When they become separated from their pods, the gormaganders often become so focused on that single task, they ignore all other instincts -- including mating resulting in the species being listed on the Endangered Species Act.

The U.S.S. Discovery found a gormagander in distress during the Klingon-Federation War which required them to transport the animal to a xenologic facility. Unbeknownst to the crew, Harry Mudd hid his ship inside the gormagander in order to infiltrate the ship.

Tamara Deverell is Star Trek: Discovery's Production Designer. Based in Toronto and New York, Deverell's two-plus decades of film and television credits include Existenz, X-Men, Wonderfalls, Happy Town, Suits, The Strain and Incorporated. She also produced the film Still Mine, which starred familiar Star Trek names James Cromwell and Genevieve Bujold.

(Portrayed by Katherine Barrell and Kay Elliott).

Harry Mudd's fiance and later wife.

A self-described "Actor/ Photographer/ Spoken Word Artist/ Speaker/ Rebel-rouser," Hamza Fouad entered the Star Trek universe with an appearance as Deck Crew #2 in the Discovery episode, "Magic to Make the Sanest Man Go Mad." His other acting work includes Painkiller Jane, Sanctuary, Bed of the Dead, Dark Matter and Designated Survivor. 

Luke Humphrey is the actor who portrayed V'Latak, the Vulcan logic extremist who tried to assassinate Ambassador Sarek (James Frain), in the Star Trek: Discovery episode, "Lethe." His prior television and film credits include Cruel But Necessary, Saving Hope, Murdoch Mysteries, Motive, Trench 11 and Frankie Drake. 

Ash Tyler's mother was enroute to the moons of Glazer when she was killed by a rogue comet.

Veteran actor Jonathan Whittaker played the Vulcan Director in the Star Trek: Discovery episode, "Lethe." One of Whittaker's earliest credits was 3 Men and a Baby, directed by Leonard Nimoy, and he counts among his subsequent film and television work Kung Fu: The Legend Continues, The X-Files, The Virgin Suicides, Gene Roddenberry's Earth: Final Conflict, Land of the Dead, Saving Hope and The Expanse. He has also appeared in such stage productions as Arcadia, Les Miserables, Dirty Dancing and Man of La Mancha.

Michael Burnham and her mother, Amanda Grayson, visited on Burnham's tenth birthday to attend a book exchange.

Seattle, WA

A city on the planet Earth and home to Ash Tyler.

(Portrayed by Luke Humphrey).

Ambassador Sarek's pilot on a diplomacy mission during the Klingon-Federation War. He diverted the ship and revealed himself as a Vulcan logic extremist, blowing himself up in an effort to assassinate Sarek and sabotage the mission. 

The U.S.S. Discovery crew is intrigued by new addition Lieutenant Ash Tyler; Sarek seeks Michael Burnham's help rekindling memories from her past; and Admiral Cornwell questions Captain Lorca's tactics.