|Full name||Rex the Platypus|
|Species||Duck Billed Platypus|
|Behind the scenes information|
|Voice Actor||Danny McMaster|
Ty the Tasmanian Tiger
He often helps Ty in many missions. In Ship Rex, Rex taught Ty to swim and then asked him to go find his girlfriend, Elle. Rex also gave Ty the aquarangs. When Ty finds Elle she gives him a red thunder egg. She is seen again in Rex Marks the Spot where with Rex trying to steal Parrotbeard's treasure from the abandoned mine and Rex asks Ty to hit the octopus's tentacles. Rex goes first, then Elle, then Rex again. Ty gains a green thunder egg. Rex appears again in Rex Marks The Spot where he races Ty between the islands for a thunder egg. He also appears in The Bridge On The River Ty where he teaches Ty how to dive.
Ty the Tasmanian Tiger 2: Bush Rescue
Rex and Elle also appear in Ty the Tasmanian Tiger 2: Bush Rescue when Elle asked Ty to take sun screen to Rex. Maurie tells Ty Rex is stuck in the bottom of the bay of a beach surrounded by sharks. Ty had to save him by defeating sharks in a Sub Bunyip. Rex then asked Ty to connect pipes underneath the water because Boss Cass sabotaged the oxygen system. Rex also appears in the cart races.
Ty the Tasmanian Tiger 3: Night of the Quinkan
Rex appears in cart races as one of many playable racers. Rex wears a light purple striped fedora with light purple pinstripe shirt and light purple shorts.
- Both Rex and Elle are platypi, and because of this, are both extremely good swimmers.
- Rex is also the first platypus in the series, and the first male platypus.