
Isaac Charles Singleton, Jr., usually credited as Isaac C. Singleton, Jr., is an American actor who has performed in film, television, and video games. To film audiences, Singleton is perhaps best known for playing the irate air marshal in the 2003 comedy Anger Management, the pirate Bo'sun in the 2003 fantasy film Pirates of the Caribbean: The Curse of the Black Pearl, and Boothe in the 2016 superhero film Deadpool. Though Singleton has also appeared in live-action roles on television, the majority of his television credits are for voice performances in animated series. Singleton is notable for providing the voice of Thanos in two Marvel series: Avengers Assemble and Guardians of the Galaxy, as well as in multiple video games, including Disney Infinity 3.0, Lego Marvel's Avengers, and Fortnite.

Pirates of the Caribbean: The Curse of the Black Pearl
2003 · as Bo'sun

Deadpool
2016 · as Boothe

Transformers One
2024 · as Darkwing (voice)

Charlie's Angels
2000 · as Kidnapper

Planet of the Apes
2001 · as Limbo's 2nd Handler / 1st Ape Soldier

Anger Management
2003 · as Air Marshall

Galaxy Quest
1999 · as Sarris' Guard

Larceny
2017 · as Tank

Bad Men Must Bleed
2026 · as Brighton

Dante's Inferni
2025 · as Speaker – 8th Circle: The Flatterers

Throwdown
2014 · as Spike

Disaster!
2005 · as Donkey Dixon (voice) (as Isaac Singleton Jr.)

Beckman
2020 · as Husk

Super Capers
2009 · as Special Agent Smith #2

Swat: Unit 887
2015 · as Ben Epps

Running on Empty
2024 · as Big Rey

McCinsey's Island
1998 · as Samson

Fist of the Warrior
2007 · as Frank