- For the Amazon version of the character, see Mother's Milk.
- "Yeah. An' look, we were into some bad shit even before what happened with Mallory, an' I gotta tell you: I am about a million times happier with all that behind me. I think if I am gonna make a difference, I'm more comfortable doin' it on a smaller scale..."
- —Mother's Milk to Billy Butcher[src]
Mother's Milk was one of the original members of The Boys. He was a good friend of Billy Butcher, and gained much respect for and even created a friendship with Wee Hughie. He left the team to take care of his daughter as her mother was a drug addict, but later rejoined. His name is a reference to the fact that he breastfeeds from his mother even as an adult.
Mother's Milk was the only member of the Boys and to be born with Compound V in his blood. His mentally handicapped brother also developed superpowers, expanding his bodily mass. However, he died moments after his powers manifested as his body and head continued expanding in size while he wearing a helmet, crushing his skull. Mother's Milk's father then pursued legal action against Vought American, but died after winning one court case.
After his father's death, he joined the military and became a heavyweight champion. During his championship, Mother's Milk discovered the powers afforded to him thanks to the Compound V — these included superhuman strength, agility, stamina and durability. Not long after accidentally using these powers to kill someone, he was approached by Billy Butcher and joined the Boys.
His nickname, Mother's Milk, comes from his dependence on his mother's breast milk, as he is unable to survive without periodically consuming it. Mother's Milk is an expert investigator thanks to his father's teachings, and it is through this skill that he mainly assists the Boys. He also struggles to maintain a relationship with his daughter Janine, but the two are able to rekindle their relationship by the end of the comic. Unfortunately, the Boys soon discover that Butcher plans on killing every single person that has ever been exposed to Compound V, so set about to stop him.
While the team is away, Butcher confronts Mother's Milk and offers him a chance to walk away. He refuses, and the two get into a fight, with Mother's Milk getting the upper hand. Butcher, however, critically injures him by detonating a grenade right next to Mother's Milk's face, and proceeds to finish him off by strangling him to death.
- Superhuman strength
- Enhanced stamina
- Weapons expert
- Unarmed combat (basic)
- Boxing (?)