Adele Pinchelow (Laurie Holden) is the villainess from Dumb and Dumber To.
She is the evil wife of the famous Dr. Bernard Pinchelow and the adoptive mother to their daughter, Penny Pinchelow. However, it is revealed that Adele was having an affair with housekeeper Travis Lippencott and had been trying to poison her husband to get his wealth. Also, the evil Adele kept Penny's birth mother, Fraida Felcher, away from Penny by responding to her letters as Penny telling her not to write her anymore.
Adele sends Travis to accompany Harry and Lloyd to the KEN Convention, where they are to deliver a package worth billions to Penny. After Travis is killed by an oncoming train, his twin brother, Captain Lippencott, assists Adele in her plan to kill Bernard and Penny as well as Harry and Lloyd.
Adele later arrives at the convention and catches Harry impersonating her husband, and as soon as Captain Lippencott arrives, the two attempt to kill Harry, Lloyd, and Penny, until Bernard enters and reveals that he knew all along about Adele's evil plan, leading to her and Captain Lippencott's arrest.