Small Wool Fedora Hat Worn by Jesse L. Martin as Professor Alec Mercer in "The Irrational" Hi, fashion-forward friends! Professor Alec Mercer, played by actor Jesse L. Martin, is seen wearing small wool fedora hat in The Irrational TV Show.The Irrational Season 1 Episode 4 - Zero Sum (2023) (Timecode - H00M05S37)🛒 Shop Similar