<Li> Thomas Haden Church as Duncan Mee, Ben's older brother and an accountant . </Li> <Li> Colin Ford as Dylan Mee, Ben's 14 - year - old son, who is initially drawn to Lily and eventually develops feelings for her and has a rough relationship with his father . </Li> <Li> Maggie Elizabeth Jones as Rosie Mee, Ben's 7 - year - old daughter, who is very curious about all of the animals in the zoo and thinks living at a zoo is a grand adventure . </Li> <Li> Angus Macfadyen as Peter MacCreedy, the carpenter of the zoo who had made many innovative enclosures for the zoo, and he claims that his ideas were "stolen" by Walter Ferris . Because of this, he has a huge and violent grudge against Walter . </Li>

Who plays the daughter in we bought a zoo