Final Space

Final Space is an American animated space opera comedy television series created by Olan Rogers for TBS and Cartoon Network's late night programming block Adult Swim. The series involves an astronaut named Gary Goodspeed and his alien friend, Mooncake, and focuses on their intergalactic adventures as they try to solve the mystery of the titular "Final Space".

Chapter Six (Season 1, Episode 6)
Little Cato is possessed by the Lord Commander.

The Closer You Get (Season 2, Episode 9)
Gary, and then later Avocato is possessed by Invictus.

The Sixth Key (Season 2, Episode 13)
Avocato continues to be possessed by Invictus.