Echo is imprinted as a date at a wedding, used to make the bride jealous.

Echo is imprinted as an older version of a girl, to help her get away from a pimp and clean from drugs.

Echo is seen negotiating with a crime lord.

Echo is sent to kill Paul Ballard, but the mission fails.

Echo was hired with this imprint by a guy named Matt to be his girlfriend for a full weekend which included dancing at a club, sex, and a motorcycle race.

Echo took the persona of Eleanor Penn to save a kidnapped girl. Eleanor is an expert negotiator and became one because of her traumatic history where she was kidnapped as a child. She has asthma. While she tries to retrieve the kidnapped girl, she realizes that the same people that kidnapped the girl, kidnapped herself as a child. With her memories of what happened, she managed to save the girl.

In a flashback, Boyd is seen escorting Echo back to the Dollhouse after an engagement. During this scene, Echo continues to constantly talk about her new love and doesn't care if he's heavy because he makes her happy.

Echo was hired by a man named Richard who told Adelle he wanted 'the perfect girl'. Echo was imprinted as a girl named Jenny. They spend the afternoon kayaking, bow hunting and climbing mountains. Shortly after sex, Richard warns Jenny that she has 10 min and then he's going to hunt her down. Richard spends the night hunting down Jenny and sending her traps along the way. Once Jenny starts to fight back, he is eventually killed.

Echo is imprinted as Jordan by a celebrity singer's manager to be a loyal friend, a backup singer and, if needed, bodyguard to the singer, Rayna. The manager suspects Rayna is being stalked and wants extra protection. Jordan saves Rayna and finds out Rayna has been in contact with the stalker, and that Rayna wants to die. The stalker later kidnaps Rayna's '#1 fan', Audra, and as an attempt to save Audra, Jordan knocks Rayna out and brings her to the stalker. Both Jordan and the stalker bring their hostages. When Jordan pushes Rayna off; the stalker is startled and Jordan saves Audra. Rayna was never in danger and she was hanging from the rope Jordan tied up earlier.

Echo was hired to be a midwife for a husband and his pregnant wife in a ski lodge. She gives birth to the baby.

Echo is imprinted as a professional thief, Taffy, to steal some art from a hotel with two other guys to assist her. They start off by putting on a sexual scene in the hotel lobby with Taffy on top of one of her cohorts kissing him passionately. The manager asks them to take it up to their room. They continue the scene in the upstairs hallway as Taffy impersonates an escapee from rape to get inside the managers office so she can break into the back warehouse. When they arrive, they get the art, and then Taffy gets wiped... causing a problem.

Echo is imprinted as a blind woman named Esther to enter into a cult and rescue potential victims within the cult that are held their against their will. Esther is very humble and has God lead her wherever she goes. That is what gets her within the cult. Outside the cult, a police officer lays false evidence to get a warrant on the group. When the police are guarding the cults exit; the cult leader lights the building on fire because that's what he believed was right. Esther rescued the people from the fire.

Echo was hired by an internet mogul, Joel Mynor, to be imprinted as his dead wife Rebecca, to have the day proceed how Joel wanted the day of her death to be. On the day of the real Rebecca's death; Joel finally earned a lot of money and wanted to surprise Rebecca with a house he bought. On her way their, she got into an accident and was killed. Joel purchases a doll once a year, on that day, to relive the day the way he wishes it went. While Echo is Rebecca, Paul breaks into Joel's house and attacks him. Boyd retrieves Echo and she is wiped.

Echo was sent by Adelle as an assassin to eliminate Paul. While Topher was in the middle of the imprint process, he stepped out. It was later revealed that someone slightly altered the imprint. While Echo and Paul were fighting, Echo stops and the slightly-altered imprint begins with explaining to Paul that someone in the Dollhouse is helping him and will report back later.

In "Echoes", Matt rehired Echo for more sex, but this time he planned to video tape it. Before they start, a news broadcast about a problem at a nearby college caught Echo's attention and she left Matt tied to the bed to go help. While she keeps the imprint for the rest of the episode, Caroline takes control for awhile and tries to finish the job she failed at before she was made a doll.

Echo is seen returning from an engagement as a Dominatrix.

Echo is made a spy hunter on her own recommendation to help Sierra and the rest of the Dollhouse find out who is spying on them. Echo starts off by interviewing the entire staff and eventually discovers that it was head of security, Laurence, even though Ivy was originally blamed.

Echo is imprinted as Adelle's recently dead friend, Margaret Bashford, so she can say goodbye. Margaret tells Adelle she wants to solve her own murder. While she's trying to solve it, Margaret is saddened by how badly her family thought of her. Her son later admits that he knows it's her and he convinces her that it's her husband, Jack, that killed her, whereas it's really him by drugging the horse she uses that affects both the horse and the rider. Margaret realizes it's her son in the end and later amends her Will to fix what Jack really deserves.

Topher sends Echo as a child volunteer counselor with a traumatic past, Susan, to help a young girl, also named Susan, through her tough childhood. When setting up the engagement, Topher had the idea to imprint Echo with a person that is an example of what the young girl, Susan, could be if she ever moved on from her childhood. Susan visit's the young girl at her school (?) and reads the story of "Sleeping Beauty" to the class. The young girl throws a fit during the story and causes the class to end. Susan talks to the girl on her own, explaining that she went through the very same thing as a child, and that she's fine now. Susan showed the girl that there's still hope.

Alpha imprints Echo as an old Whiskey imprint, Crystal, who was a nationwide thief that was in love with one of Alpha's old imprints, Bobby. Bobby and Crystal were partners in crime and love for an engagement a few years ago. Now Alpha, who contains Bobby, escapes with Crystal from the Dollhouse. Alpha takes Crystal back to his lair shortly after kidnapping a women that he imprints Caroline into. Alpha then imprinted Crystal with all of Echo's other engagements at once, similar to what happened to himself, and then have her kill her true self, Caroline, in the body of the women they kidnapped. Once all of Echo's other engagements were imprinted in her, she was no longer just Crystal, so her engagement ends here.

Topher imprints Echo as a Russian Girl to infiltrate the Russian Mob. Not much is known about the the person Echo was imprinted as except that she couldn't speak English and had "big dreams". We only see her being imprinted and taken away by Paul, so we don't know how the engagement carries out. We also know that Echo has learned to fight the imprints at this point in the future and she has both Caroline and the Russian girl in her head at the same time which is giving her severe headaches.

Paul uses Echo as an undercover agent, Rona, to put Martin Klar in jail. Klar was a criminal Paul never arrested back when he was involved with the FBI. Rona goes undercover in this long-term engagement by seducing and marrying him while reporting back to Paul every so often. While Rona investigates Klar's office, Klar discovers a photograph of Rona and Paul together. Klar assumes that Rona is working undercover with Paul, who was the FBI agent that tried to get him arrested before. When he accuses Rona of this, Rona (Echo) starts glitching. Echo starts changing into past imprints leaving Rona behind for the remainder of the engagement.

Echo is imprinted as Emily Jordan to act as a mother for a baby who lost his actual mother during the birth. The father, Nate, made the decision to make Emily (Echo) think it was actually hers so the baby could have a maternal bond with her. Due to complications involving Emily finding pictures of the actual mother, Nate calls Adelle and tells her he wants to get rid of her. When Emily overhears, she thinks that Nate was trying to kill her so she prepares an escape. Paul arrives and tries to retrieve Emily but before he finds her, she has left. Emily reports what has happened to the police, but Paul and Nate show up and explain what has actually happened. Emily is stripped of her child and she's forced back to the Dollhouse for a treatment. Even though Echo returns for the baby, she's not Emily anymore. She's just an active with maternal instinct still inside.

Echo was imprinted as college student Kiki Turner for a professor who wanted to have sex with her as his student. She attended his class and shortly after visited his home office for extra help. While there, Kiki enjoyed herself while the professor slowly seduced her. After awhile, they stood up and started dancing with each other. When they were about to pursue each other further, Topher was trying to give Victor a remote-wipe on an engagement gone wrong which didn't work and ultimately switched Echo and Victor's imprints. Echo became Victor's and Victor became Kiki.

During Echo's engagement as Kiki, Topher accidently switched Victor and Echo's engagements remotely which made Echo becoming the serial killer, Terry. Before leaving Echo's engagement as Kiki, Terry killed the professor she was with. Terry then heads back to where he/she locked up the kidnapped women. Terry starts shouting at them loudly while they lay on the ground clearly frightened. During Terry's rant, Echo slowly emerges from within and fights for control of the body. When Echo's in control she tells the women to kill her so Terry doesn't come back. Paul arrives and retrieves Echo before anything else happens.

Echo is seen at a party at Nolan's where she is clearly there for a sexual engagement. She speaks to Priya (Sierra) at the party.

Echo is sent to Daniel Perrin to film them having sex to use as a bribe to stop him revealing the Dollhouse. She ends up going with him to his home where the disrupter reveals Daniel is a doll, and Echo's past personalities appear once more.

Echo becomes Joel's wife Rebecca again to help find him and stop Alpha from killing him.