In which TV series is Charles-Haden Savage a main character?

Who played Beth Harmon in 'The Queen's Gambit'? Who played Seong Gi-hun in 'Squid Game'? In which TV series is Seong Gi-hun a main character? Who played Charles-Haden Savage in 'Only Murders in the Building'? Who played Oliver Putnam in 'Only Murders in the Building'? Who played Mabel Mora in 'Only Murders in the Building'? In which TV series is Mabel Mora a main character? Who played Janine Teagues in 'Abbott Elementary'?