Coagula (real name Kate Godwin, birth name Clark Godwin) is a fictional character and former member of DC Comic's Doom Patrol. Kate is a male-to-female transsexual, one of the first transsexual characters in comics, and remains one of the only transsexual superheroines. The character was created by transsexual science fiction writer Rachel Pollack. Pollack named Kate Godwin after Chelsea Godwin and transsexual writer/activist Kate Bornstein. Both trans-women are good friends of Pollack.
Kate gains her powers while working as a prostitute. One of her customers is Rebis, a radioactive hermaphrodite; after Kate has sex with him/her, she discovers she can coagulate liquids and dissolve solids at will. She first tries out for the Justice League, but is rejected by them. She meets the Doom Patrol while battling a villain called the Codpiece, who has devices such as a gun, a drill, and a spring-loaded boxing glove built into a special codpiece he designed and built. Coagula dissolves the device.
The name Coagula comes from the alchemical term "Solve et Coagula", meaning "dissolve and coagulate".
A while after the Doom Patrol split, Kate and Cliff take fellow teammate Dorothy Spinner on a camping trip with the intention of telling her she is adopted. However, after hearing this, Dorothy suffers a mental breakdown. This causes her to generate a powerful psychic explosion, killing Kate and supposedly killing Cliff. Following this, Dorothy falls into a coma.