Thomas Steven Middleditch is a Canadian actor. He is best known for his role as Richard Hendricks in the HBO series Silicon Valley (2014–2019), earning a nomination for the Primetime Emmy Award for Outstanding Lead Actor in a Comedy Series. He voiced the titular character in the Disney XD animated series Penn Zero: Part-Time Hero (2014–2017), Harold Hutchins in Captain Underpants: The First Epic Movie (2017), Sam Coleman in Godzilla: King of the Monsters (2019), and Terry Opposites in the Hulu adult animated sci-fi series Solar Opposites. Middleditch made his Broadway debut in 2024 as Eli in Eureka Day. He also appeared in ads for Verizon Wireless.