Martial artist and actress Zara Phythian, who acted alongside Benedict Cumberbatch in the 2016 Marvel Studios film “Dr. Strange,” reportedly stands accused of grooming and participating in sex acts with a girl who was 13 years old at the time. The BBC reports that a British court heard Phythian, 36, and her now 59-year-old husband Victor Marke, allegedly had a sexual relationship with the alleged victim that began in 2005 and continued in 2008. Phythian and Marke, also a martial arts practitioner, married in 2015. The couple denies any wrongdoing. Jurors in Nothingham Crown Court were reported…