Well...I just finished binge watching season 15. Had no clue it was the end of Abby season....but I was not surprised to see Casey take her place. At first, I was a bit hesitant that anyone could fill those particular shoes even though I did not much care for Abby anyway....but Casey has her own quirks and I love her acting and the character she is now portraying. Abby was all goth (stupid) but Casey is in to NASA..which is much cooler, lol. Anyway....I still miss Tony . And I wonder if the newest "couple" will be Bishop and Torres? Anyone else watch this show?