Carlton coach Brendan Bolton has revealed that veteran defender Kade Simpson will play on in 2019, extending his career into a 17th season.

Simpson, who turns 35 next May, is coming off a dominant performance during his side's 17-point loss to the Western Bulldogs on Sunday afternoon, racking up 35 disposals across half back.

The always reliable Simpson has starred for the navy blue this season, averaging 26.6 disposals and 5.5 marks as one of their most consistent performers.

And Bolton marvelled at Simpson's importance to his young side's development.

"He's a great role model for our football club," Bolton told reporters post-match

"He'll play on, there's no doubt about that. We want him to, we need him to and he wants to. We'll just get it sorted through his management and SOS (list boss Stephen Silvagni).

"It's so important to have that type of player with our list profile."

Fellow veteran Dale Thomas is also expected to play on next season and star defender Sam Docherty will return from an ACL injury, which will vastly help shore up Carlton's defence.