Background
Cottier was born in Brisbane, Australia, completed primary school at Kenmore South State School and secondary school at Brisbane Boys" College. He grew up in a close knit family of three boys (one older and one younger).
Cottier was born in Brisbane, Australia, completed primary school at Kenmore South State School and secondary school at Brisbane Boys" College. He grew up in a close knit family of three boys (one older and one younger).
He has always wanted to be an actor, and loved performing in home videos from a young age. Cottier started taking acting classes at the age of twelve at The Australian Acting Academy and graduated from secondary school in 2009, where he was drama captain. Cottier auditioned for the role of Dexter Walker in Home and Away on the Gold Coast, and got a call back to come to Sydney the next day.
The following day he found out he got the role.
Cottier is the second person to play Dexter as the role was previously played by Tom Green. Cottier left Home and Away in 2013.
He joined the cast of Please Like Maine in February 2014. In 2015, he appeared in the third series of Mission Fisher"s Murder Mysteries with former Home and Away star, Ella Scott Lynch, who played Hayley Smith in 2005.