Dawn Therese Brancheau (née LoVerde, April 16, 1969 – February 24, 2010) was an American senior animal trainer at SeaWorld. She worked with orcas at SeaWorld Orlando for fifteen years, including a leading role in revamping the Shamu show, and was SeaWorld's poster girl. She was killed by an orca, Tilikum. Tilikum was also involved in the deaths of two other people: Keltie Byrne and Daniel P. Dukes.