

Rufus Carlin ( Malcolm Barrett) is a programmer at Mason Industries assigned as the pilot of the prototype time machine "Lifeboat." He is initially uncomfortable with the idea of traveling with the team due to the unkind history of African-Americans over the centuries. Wyatt Logan is named after Ted "Theodore" Logan, the second main protagonist of the Bill & Ted franchise. After returning from 1888 Chinatown, Wyatt admits to Lucy that he loves her just as a second Lifeboat shows up with Wyatt and Lucy from the future. When Jessica later reveals herself to be a Rittenhouse member, Wyatt admits his suspicions to the team. Though Wyatt becomes suspicious of Jessica, he refuses to let Agent Christopher move her out after he discovers Jessica is pregnant. Despite choosing his wife, Wyatt still has feelings for Lucy, and is jealous when she hangs out more with Flynn. When Jessica threatens to divorce him, Wyatt reveals the existence of the time machine, and her original fate so she will give him a second chance. In season two, Wyatt develops a romantic relationship with Lucy, but after the team's 1941 Hollywood mission, he discovers that Jessica is alive.

After the team's 1954 mission, Wyatt decides to stick around with the team. He promptly escapes with the help of Agent Christopher, and reunites with the team to continue chasing after Flynn. While he succeeds in erasing Gilliam from existence, he is arrested by Homeland Security and discovers that Jessica remains dead.
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With the help of Rufus, Wyatt steals the Lifeboat and travels to 1983 to prevent the birth of Wes Gilliam, the serial killer who murdered Jessica. Wyatt also suffers from PTSD after being the lone survivor of a failed operation. After returning from 1893 Chicago, Flynn calls Wyatt, tells him who killed his wife, and suggests what he should do to reverse it.

While in 1962 Las Vegas, he takes a cue from Back to the Future Part II and has Western Union write a telegram for Jessica in 2012, but it doesn't work. Because of this, he often wishes to use the time machine to prevent her death. He constantly tries to cope with the loss of his wife Jessica, who was murdered in 2012. As an elite soldier, he has expertise in weapons, picking locks, and is fluent in four languages. Army Delta Force operative assigned to the Lifeboat team. Preston, Esquire, the first main protagonist of the Bill & Ted franchise. While dealing with Rufus' death, Lucy is shocked when a second Lifeboat appears with Lucy and Wyatt from the future, offering to help the team save Rufus. Lucy befriends Flynn while dealing with her heartbreak, and finds out that a future version of herself gave Flynn the journal. When Jessica realizes Lucy loves Wyatt, Lucy convinces her to stay and give Wyatt a second chance. Lucy starts a romantic relationship with Wyatt, but when he discovers his wife, Jessica, is alive again, Lucy backs off. Carol and Emma escape with Nicholas, while Lucy returns with Wyatt and Rufus. Emma discovers her plan, but Wyatt shows up and saves Lucy. She reunites with Wyatt and Rufus, who were led to believe she was dead, and reveals her plan to stop Rittenhouse, even if it meant killing herself. In season two, Lucy is kidnapped by Rittenhouse but later joins Carol and Emma in 1918 France to save Nicholas Keynes. Just as Lucy gets permission to get Amy back using the time machine, she discovers that Carol is also part of Rittenhouse. The plan works, and they get enough evidence to arrest Rittenhouse members. When the team travels back to 1954, Lucy gets the help of her grandfather to help bring Rittenhouse down. Lucy refuses to be a part of Rittenhouse, aiming to stop them. Since Rittenhouse members are all descendants, Cahill tells Lucy that she's also a part of Rittenhouse. After several arguments, Carol reveals her biological father is Benjamin Cahill, whom Lucy discovers is part of Rittenhouse. In addition, she finds out that her mother lied about who her biological father is. Following the Hindenburg mission, Lucy is left reeling over her mother no longer dying of cancer, her sister never being born, and being engaged to a man who is a complete stranger. Throughout the team's adventures, Lucy personally encounters Flynn, who reveals that he possesses a journal she will write in the future. One night, she is recruited by Homeland Security and Mason Industries to the "Lifeboat" team with Wyatt and Rufus as a history advisor to stop Garcia Flynn and recover the "Mothership".

Aside from history, Lucy is fluent in French. She suffers from claustrophobia after having nearly drowned in a car accident while she was in college. Lucy Preston ( Abigail Spencer) is a history professor trying to follow her mother's footsteps.
