In The Rebound Girl, Barney and Ted decide to adopt a baby as bros. Later on, Barney enters The Apartment with a baby girl. At first Ted is worried where Barney got the baby from. However, he stops questioning Barney once he notices that the baby is attracting the attention of many women. James tells them that the baby is their newly adopted daughter, Sadie, whom Barney was babysitting. She appears again in Gary Blauman, along side her brother. She is listening to James tell them the story of how he met Tom.