He is a soldier who is given a serum derived from Hourman's Miraclo drug, giving him the ability to transform into a monstrous grey form for one hour at a time.

[2] A reimagined, villainous version of Ethan Avery appears in My Adventures with Superman, voiced by Jason Marnocha.

[2] Grant Emerson is a teenage metahuman and ally of the Justice Society of America who is imbued with the DNA of various superheroes as part of Project Telemachus.

[13] The Grant Emerson version of Damage can generate a power charge that enhances his strength, durability, speed, and reflexes to superhuman levels.

The Ethan Avery version of Damage can transform into a monstrous form who possesses immense strength and durability.