<Ul> <Li> Felix Blake (portrayed by Titus Welliver, first in season one): A S.H.I.E.L.D. agent whose spine is broken by Deathlok . He becomes the leader of the anti-Inhumans Watchdogs terrorist group . </Li> </Ul> <Li> Felix Blake (portrayed by Titus Welliver, first in season one): A S.H.I.E.L.D. agent whose spine is broken by Deathlok . He becomes the leader of the anti-Inhumans Watchdogs terrorist group . </Li> <Ul> <Li> Streiten (portrayed by Ron Glass): A S.H.I.E.L.D. physician who oversaw Coulson's resurrection . </Li> <Li> Ace Peterson (portrayed by Ajani Wrightster): Mike Peterson's son . </Li> <Li> Franklin Hall (portrayed by Ian Hart): A S.H.I.E.L.D. teacher who gets trapped in gravitonium . </Li> <Li> Edison Po (portrayed by Cullen Douglas): A Project Centipede leader, killed by the Clairvoyant . </Li> <Li> Chan Ho Yin / Scorch (portrayed by Louis Ozawa Changchien): A street performer with pyrokinesis who joins up with Raina and Hydra to enhance his powers . </Li> <Li> Elliot Randolph (portrayed by Peter MacNicol): An Asgardian posing as a human college professor . </Li> <Li> Thomas Ward (portrayed by Tyler Ritter as an adult, Micah Nelson as a boy): The abused brother of Grant and Christian, living in hiding from his family under an alias . </Li> <Li> Christian Ward (portrayed by Tim DeKay as an adult, Alex Neustaedter as a boy): A Massachusetts Senator and abusive brother to Grant and Thomas . Grant later apparently kills Christian . </Li> <Li> Goodman (portrayed by Imelda Corcoran): A S.H.I.E.L.D. physician in Project T.A.H.I.T.I. </Li> <Li> Donnie Gill (portrayed by Dylan Minnette): A S.H.I.E.L.D. cadet who gains cryokinetic abilities . </Li> <Li> Richard Lumley (portrayed by Boyd Kestner): A S.H.I.E.L.D. agent from Skye's past . </Li> <Li> Lorelei (portrayed by Elena Satine): An Asgardian with the ability to seduce any man . </Li> <Li> Thomas Nash (portrayed by Brad Dourif): A vegetative man Garrett uses as a decoy Clairvoyant . </Li> <Li> Marcus Daniels (portrayed by Patrick Brennan): Able to drain the energy from anything following an experiment with the Darkforce, he explodes after being exposed to pure light by S.H.I.E.L.D. </Li> <Li> Audrey Nathan (portrayed by Amy Acker): A cellist involved with Coulson before The Avengers . </Li> <Li> Lian May (portrayed by Tsai Chin): Melinda May's mother . </Li> </Ul> <Li> Streiten (portrayed by Ron Glass): A S.H.I.E.L.D. physician who oversaw Coulson's resurrection . </Li>

Who plays ada in marvel's agents of shield