SPOILER ALERT: This post spoils the finale of the first season of Rooster on HBO and HBO Max . The first season of Bill Lawrence ’s and Matt Tarses ’ HBO comedy series Rooster has come to an end, but not to worry because everyone will be back for the second season. In a cozy, snowy Christmas-set finale episode, Greg (Steve Carell) gives what he thinks is his last lecture to his writing seminar students, until a surprise party organized by Professor Dylan (Danielle Deadwyler) and Tommy (Maximo Salas) convinces him that he’s found a place he belongs. He gives another speech at Art’s Diner where they toast to him, and after, he calls Ludlow College President Walter Mann (John C. McGinley) to see if he can stay another semester. Other victories involve Greg’s daughter Katie (Charly Clive) and pregnant graduate student Sunny (Lauren Tsai) leaving Phil Dunster’s Russian studies professor Archie Bates for good. More on what that means for him below.…