Over two years after his final turn as Succession ’s calculating yet quirky Tom Wambsgans, Matthew Macfadyen returned to the World Trade Center complex—the backdrop for Waystar Royco’s headquarters on the show. This time, instead of heading to television network ATN, he joined Newsweek to discuss his latest role—playing Charles Guiteau, U.S. President James A. Garfield’s assassin, in Netflix’s limited series Death by Lightning .  With his long beard, erratic persona and chronic money troubles,