Mr. Rosenthal is the principal at Cardinal Gennaro High School. He appears in "The Pumpkinening" where he reveals the truth about why Linda smashed her pumpkin while going to pick up his dog, Jasper, from To Groom It May Concern Dog Grooming.
Trivia[]
- He is not shown in flashbacks but his silhoutte is visible when Linda overhears him in one.