Harper and Sydnee Udell, who have played Arianna Horton since the character’s debut in 2013, are done at DAYS, their official Instagram account confirms. “It is with a sad heart we had to say goodbye to the home we knew for 6 1/2+ years,” reads the post. “Being blessed with this role for so long has been a dream. We have been recast, we fully support all the cast & writers. We wish nothing but the best for the entire cast & crew. We have made many new friends and family, and thank all of them for the love & support we have received. Thank you to our fans for your love & support! #days #theudelltwins #dool #nbcdays #arianagracehorton.”