The fifth and final season was said by producer Alan Burnett to be the show's "The Brave and the Bold season". This season primarily focused on the Dynamic Duo (The Batman and Robin) teaming up with members of the Justice League. Batgirl and Commissioner Gordon were dropped from the show as main characters, and only rarely appeared as guests or cameos. In Batgirl's case, this is because she has graduated from high school and is attending college ("Attack of the Terrible Trio"). In the season's first episode, The Batman teams up with Superman (voiced by George Newbern). Besides Martian Manhunter, other team-ups for the season included Green Arrow (voiced by Chris Hardwick), Flash (voiced by Charlie Schlatter), Green Lantern (voiced by Dermot Mulroney), and Hawkman (voiced by Robert Patrick). The series finale features the entire Justice League. Villains for this particular season were a combination of rogues from the superheroes appearing on the show with some Batman villains. Villains include Lex Luthor (voiced by Clancy Brown), Mercy Graves (voiced by Gwendoline Yeo), Metallo (voiced by Lex Lang), Count Vertigo (voiced by Greg Ellis), The Wrath (voiced by Christopher Gorham), Toyman (voiced by Richard Green), Shadow Thief (voiced by Diedrich Bader), Sinestro (voiced by Miguel Ferrer), Mirror Master (voiced by John Larroquette), and the Terrible Trio (voiced by David Faustino, Grey DeLisle, and Googy Gress). Also, Firefly becomes Phosphorus. The Joining returns in the finale in alliance with Hugo Strange. The final episode was a 40-minute movie, featuring all the members of the Justice League who have made an appearance in the show.