A member of Carol Marcus's Project Genesis team on the space laboratory Regula I, who is killed in 2285 by a phaser blast from the mind-controlled Captain Terrell.
Jedda appears in Star Trek II: The Wrath of Khan. He is one of the small group of scientists working under Carol Marcus, and is present when Chekov calls from the Reliant with the claim that Starfleet is taking Genesis away from them.
When Khan arrives, Jedda escapes with Carol and David Marcus by beaming into the cavern inside the Regula planetoid, taking the Genesis device with them. Their colleagues who stay behind are murdered.
Kirk's party finds them there, but Terrell and Chekov are still under the influence of the Ceti eels and turn their weapons on the group. Jedda lunges at Terrell and is vaporised. He was played by John Vargas.