Sealab 2021

When Harry Goz, who voiced Captain Murphy, died in 2003, the first episode produced after his death introduced Tornado Shanks, a new regular character voiced by Harry's son, Michael Goz.

In "Butchslap", when Quinn is doing his demonic laughter, his lips move more as though he is speaking rather than laughing.

The opening credits of each episode has a different sound effect relating to the episode as the "2020" turns to "2021": In the episode "Radio Free" the sound effect is radio static. In the episode "Happy Cake" the sound effect is an electronic door opening. In the episode "I, Robot" the sound effect is a pneumatic drill. In the episode "Chickmate" the sound effect is a baby crying. In the episode "Predator" the sound effect is a monster growling. In the episode "Lost in Time" the sound effect is a zap. In the episode "Little Orphan Angry" the sound effect is a child coughing. In the episode "Waking Quinn" the sound effect is a zap. In the episode "All That Jazz" the sound effect is a gurgle. In the episode "Murphy Murph and the Feng Shui Bunch" the sound effect is a gong.

Featured in AMV Hell 3: The Motion Picture (2005)