Whitecross played 111 games for the Hawks since making his debut in Round 1, 2009, while Lovell played his only two games for the clubs in 2016.
“On behalf of the club I would also like to extend our thanks to Brendan and Kieran for their contribution to Hawthorn and wish them all the best in their future endeavours,” Hawthorn General Manager of Football Graham Wright told hawthornfc.com.au.
“Brendan has spent a long time at our footy club, having joined the Hawks in the 2007 draft. He is a life member and an amazing clubman.
“Unfortunately for Brendan his career has been interrupted with injuries, however he has always shown great resilience and determination in the face of adversity. We are rapt that he was finally able to get some reward for all his hard work and finish his time at the Hawks with a VFL premiership.
“We wish Brendan, his wife Kelly and their family all the best for their next adventure.”