In this episode Mike (Patrick J. Adams) correctly answers that 6 supreme court judges came from Harvard. This answer was given to him in Series 1 episode 1 (Pilot (2011)), when the tour guide says it to him and prospective students.
After not being able to answer a Harvard question Mike goes to Harvey (Gabriel Macht) to tell him that he thinks Louis (Rick Hoffman) knows about his secret. Harvey makes light of it by suggesting Louis knows Mike's Canadian. Patrick J. Adams who plays Mike actually is Canadian.
When Church calls Mike a child, Mike rubs his eye with his middle finger, flipping off Church.
One of the complainants in the case against Quentin Sainz (Russell Hornsby) has the name Washburn. Gina Torres (Jessica) played Zoe Washburn in Firefly (2002) and Serenity (2005).
Jessica's ex-husband Quentin Sainzis (played by Russell Hornsby) is now married to Lisa Parker (played by Sharon Leal). Russell Hornsby & Sharon Leal also dated in Grimm (2011-2017) playing Detective Hank Griffin & Zuri Ellis respectively. Grimm also starred Sasha Roiz (as Captain Sean Renard) who appears in Season 8 of Suits as Thomas Kessler.