David Ajala Jemima Marriott Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Logo text NBC's Law & Order is filling a vacancy in its regular cast. Star Trek: Discovery alum David Ajala has joined the long-running crime procedural, where he'll play an NYPD detective alongside Reid Scott's Vincent Riley. Ajala's first appearance on the show will come partway through the season; Law & Order opens its 25th campaign Thursday night.