David Tennant will lend his voice to Rooster Teeth's upcoming animated series gen:LOCK

The former Doctor Who star is joining a voice cast that already includes Michael B. Jordan, Dakota Fanning and Koichi Yamadera. 

Gen:LOCK will tell the story of a team of young pilots, led by Jordan's Julian Chase, who control the next generation of giant robots known as mecha as they fight on the losing side of a global war. Tennant will voice Dr. Rufus Weller, the lead scientist with the Experimental Science Unit. 

"Tennant is sci-fi royalty and we are thrilled to have him join this amazing cast," Rooster Teeth co-founder and CCO Burnie Burns said in a statement. 

The 3D animated gen:LOCK is produced by Rooster Teeth and Jordan's Outlier Productions. 

Otter Media-owned Rooster Teeth has been producing web series since 2003, including sci-fi comedy Red vs. Blue and animated series RWBY, which will bow its sixth season this fall. When gen:LOCK premieres, it will stream exclusively on Rooster Teeth's $5-per-month subscription streaming service, which is available at the Rooster Teeth website as well as via Xbox One, Apple TV, iOS and Android.