In Small Potatoes (1997), Special Agent Fox Mulder (David Duchovny) asks Dana Scully (Gillian Anderson) whom she would want to be if she could be another person. She says Eleanor Roosevelt. Anderson plays Eleanor Roosevelt in this series.
This is the second time Gillian Anderson and Ellen Burstyn have played mother/daughter-in-law. The first time was in Playing by Heart (1998).
Both Michelle Pfeiffer and Aaron Eckhart have played Batman villains. Pfeiffer played Catwoman in Batman Returns (1992), and Eckhart played Two-Face in The Dark Knight (2008).
Aaron Eckhart, Michelle Pfeiffer, and Viola Davis previously have appeared in DC Films involving Batman, namely The Dark Knight (2008), Batman Returns (1992), and Suicide Squad (2016).