Riverdale Country School
Directed the sequel "Avengers: Age of Ultron"
Became a writer and producer on the series "Agents of S.H.I.E.L.D."
Helmed and co-wrote the Marvel superhero ensemble feature "The Avengers," starring Robert Downey Jr., Chris Evans and Scarlett Johansson
Co-wrote the horror thriller "The Cabin in the Woods"
Directed a post-credits scene in Kenneth Branagh's superhero feature "Thor" to set up "The Avengers"
Created and executive produced "Dollhouse" (Fox) starring Eliza Dushku; also wrote several episodes and directed the pilot
Directed and co-wrote the Web miniseries "Dr. Horrible's Sing-Along Blog"
Launched a free webcomic, Sugarshock! on Dark Horse comic's Myspace page
Helmed "Serenity," the feature-length adaptation of his TV show "Firefly"
Released a series of online shorts titled the "R. Tam sessions," starring himself and Summer Glau
Created and executive produced "Firefly" (Fox); also wrote and directed the pilot
Credited co-writer for the Disney animated feature "Atlantis: The Lost Empire"
Reportedly did uncredited rewrites of "The X-Men" and "Titan A.E."
Executive produced and co-created the spin-off series "Angel" (The WB)
Formed the production company Mutant Enemy, Inc. and signed with 20th Century Fox
Created and executive produced "Buffy the Vampire Slayer" (The WB, 1997-2001; UPN, 2001-03), based on his screenplay; penned many episodes including the Emmy-nominated episode "Hush" (2000); made directorial debut with "Prophecy Girl" (1997)
Reportedly did uncredited rewrites for "Twister"
Received an Oscar nomination for his significant rewrite for "Toy Story"
Did uncredited rewrite work on the blockbuster hit "Speed"
Made feature screenplay debut with "Buffy the Vampire Slayer"
Co-produced the short-lived NBC series "Parenthood"
Served as story editor and writer for the ABC sitcom "Roseanne"
Identifies himself as a humanist. In February 2009, the Humanist Chaplaincy at Harvard awarded him the Outstanding Lifetime Achievement Award in Cultural Humanism.
Wrote several spec scripts for various series' before selling his first to "Roseanne."