The actor lost his mum in 2012 and his dad in April (14), and the double tragedy prompted Bennett to dance away his heartache.
He tells his local Ohio newspaper the Toledo Blade, "I'm doing every performance for both my parents because I know how much they would love to see me on this.
"I just lost my father to brain cancer not but three months ago and this was his favourite show on television. When he was sick in (the) hospice, the only show he wanted to watch was Dancing With the Stars because he said this show made him feel good."
But there will be no romance on the dance show for single Bennett - he has been paired with newlywed dance pro Allison Holker.