Amazon’s upcoming animated adaptation of Robert Kirkman’s Invincible has found two more cast members.

Via EW, Heroes favourite Zachary Quinto and The Walking Dead star Khary Payton have signed on to lend their vocals to this animated series. Kirkman himself revealed the news to EW, although he’s yet to specify just which characters Quinto and Payton will be voicing.

This duo join a cast that will be headline by The Walking Dead’s Steven Yeun in the lead role of Mark Grayson – the 17-year-old who gains powers and becomes the titular Invincible hero. Also on board for Invincible are Spider-Man’s J.K. Simmons, Deadpool 2’s Zazie Beetz, Community’s Gillian Jacobs, The League’s Jason Mantzoukas, Justified’s Walton Goggins, the iconic Mark Hamill, and Seth Rogan as Allen the Alien.

Invincible was created by Robert Kirkman and Cory Walker in 2003, running for 144 issues up until the title ended in 2017.

Amazon has confirmed that Invincible will get an eight-episode first season, although a premiere date has yet to be confirmed by the on-demand streaming platform.