1 Dawn (Lizzy Greene) is the oldest of the quadruplets by four seconds. 2  Although she's always seen bothering her brothers, she does care about them deeply. 3  There is a consistent rivalry for the leader spot of the quads between her and Ricky. 4  Ricky (Casey Simpson) is the second oldest of the Harper quadruplets. Dawn (Lizzy Greene) is the oldest of the quadruplets by four seconds. 2  Although she's always seen bothering her brothers, she does care about them deeply. 3  There is a consistent rivalry for the leader spot of the quads between her and Ricky. 4  Ricky (Casey Simpson) is the second oldest of the Harper quadruplets.
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