Arielle Kebbel is looking for her missing sister, Julia Kebbel, who was last seen walking her chocolate Labrador in Los Angeles' Silverlake area on Jan. 31. The actress, who appears in the upcoming "Fifty Shades Freed", took to Instagram on Saturday to ask fans for help in finding her loved one. The 32-year-old star wrote, "ALERT. My SiSTER JULIA KEBBEL is MISSING. She was last seen in silver lake, walking her chocolate lab, Cindy, at 11 pm wed night.