Brendan Fraser rarely wears the Robotman suit. Most of the time the character is played on set by Riley Shanahan.
Diane Guerrero had been vocal about wanting to play a superhero and described her dream role as '"anything involving sci-fi or fantasy".
Robotman wears a different T-shirt of a rock band in every adventure, mostly, punk bands, such as The Clash, Dead Kennedys, Black Flag, etc.
Season 2 was originally supposed to have 10 episodes, but because of the global pandemic, they had to halt shooting on Doom Patrol and the season 2 finale was never shot. Nevertheless, creator Jeremy Carver revealed that because they sensed while shooting episode 9 that a stop on production was coming, they rewrote some scenes to have the episode also worked as a finale.
Abi Monterey, who plays the young girl Dorothy, was actually twenty years old at the time of shooting.