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See also Dillon (alternate)
Dillon accompanies Troy and Jamie Hamilton back in time in order to stop Xaviar from altering history (Galactica Discovers Earth). He also helps to protect the children of Galactica when they end up on Earth (The Super Scouts). He helps to track down Xaviar when he returns and threatens the children (Spaceball).
He and Troy also thwart the efforts of the Cylons use a hijacked radio station to make a transmission (The Night the Cylons Landed).
In the novelization by Michael Resnick, Dillon is described as a 6'3", 202 lbs. male with brown eyes and light brown hair. According to said police blotter, Dillon has a scar on his upper left arm as a result of a Cylon attack.  In addition, Dillon notes that while he was on the planet Pinta, he had a personalized robot companion that appears quite similar to a jukebox, but better sounding.