Jesse L. Martin calls “good old rainy Vancouver” home. The veteran actor, who stars as behavioral scientist Alec Mercer on ...

Alec Mercer (Jesse L. Martin) in Season 2 Episode 1 of The Irrational. Marisa Kylie and Rose all talk to alec in a hospital bed in The Irrational Season 2, Episode 9.

Alec Mercer (Jesse L. Martin) in Season 2 Episode 1 of The Irrational. Alec Mercer (Jesse L. Martin) and Rose Dinshaw (Karen David) embrace in a warmly lit living room in The Irrational Episode 217.

The Irrational airs Tuesday nights at 10 p.m. ET/PT on NBC. Streams next day on Peacock. Next, The Irrationa l Star Jesse L. Martin on How Dr. Alec Mercer Will Change in Season 2 ...