Kenneth Dalby
Crewman Kenneth Dalby was a Maquis fighter who served on the raider Val Jean under Chakotay until 2371. In 2371, the Val Jean and the  were both stranded in the Delta Quadrant by the 's array. The Val Jean was destroyed by ramming a Kazon warship while fighting the Kazon-Ogla, and as a result the crew of the Val Jean, Jor included, joined the crew of the Voyager as Starfleet personnel and traveled on Voyager on its historic trek home from the Delta Quadrant. ()

History
Dalby used to live on the Bajoran frontier – which he described as a "hard life." He coped by getting into a lot of trouble and being angry at everybody and everything. 

Eventually, he met and fell in love with a woman and for a while was at peace. When she was later raped and killed by three Cardassians, he decided to join the Maquis and "slaughter as many Cardassians" as he could.

After Chakotay's ship, the Val Jean, was pulled into the Delta Quadrant in 2371 and both Starfleet and Maquis crews were integrated to be one Starfleet crew, Dalby found it rather difficult to adjust to life aboard Voyager, where he served in the engineering department.

In fact, he was not very fond of Starfleet and once even remarked that he regretted every minute of every day not being with the Maquis anymore. He was frustrated and angry having to deal with what he perceived as pesky Starfleet protocols, emphasizing that as a Maquis he was used to doing things "the Maquis way."

In late 2371, while making an unauthorized repair to a malfunctioning bio-neural gel pack, he accidentally disrupted power to the ship's energy grid. Dalby was then confronted by Lieutenant Tuvok, at which time he became agitated and insubordinate. When discussing him with Captain Kathryn Janeway, Tuvok remarked that Dalby had been behaving very undisciplined since his time on the ship began, as he was once caught tampering with the ship's systems to increase replicator rations for a friend and had missed three of his last ten duty shifts.

Trying to find a way to address the issue, Dalby and three other former Maquis deemed in need of some discipline were ordered by Commander Chakotay to undergo a rigorous Starfleet Academy-style training scenario, aimed at bringing former Maquis personnel unfamiliar with Starfleet standards up to date. 

Despite great reluctance, Dalby had no choice but to acquiesce to Chakotay's order and try to make things work with Tuvok. Even though he and Tuvok did not see eye to eye in the beginning, by the end of the training exercise both developed an understanding as well as respect for the other. Dalby changed his attitude towards Tuvok and Starfleet a great deal when he witnessed Tuvok risk his own life to save the youngest member of the team, Gerron, who had been seriously injured in a cargo bay accident. ()

Appendices

Background information 
Kenneth Dalby was played by Armand Schultz.

"Learning Curve" co-writer Jean Louise Matthias said of the character, "In our early story treatment, Dalby was a much darker, angrier person. He was named after a kid who terrorized me in third grade. That changed a little to show he could be redeemed at the end." (Cinefantastique, Vol. 27, No. 4/5, p. 71)

Apocrypha
In the video game Starship Creator, Dalby's past is described in more detail. According to the video game, Dalby was born on Dreaon VII, in 2335. He showed an interest early on in the sciences and engineering, and attended the Federation Institute of Technology, where he studied propulsion engineering. After graduating and working as a commercial engineer for a few years, he grew increasingly more tired of his job at the spaceport and soon joined a Federation freighter, the SS Gryphon, as assistant chief engineer. In 2367, he married a Bajoran woman, Paola Calderon, until she was brutally raped and killed by Cardassians.

In an alternate timeline depicted in the Infinity's Prism  Places of Exile, Dalby is serving at an auxiliary engineering station on the bridge of Voyager in 2374 when the ship witnesses Species 8472 assault a Borg-occupied star system. Dalby is killed when one of the pursuing ships of Species 8472 severs a starboard nacelle and collides with the Voyager bridge.

External link
 

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Humans
Starfleet operations personnel
USS Voyager personnel
Maquis personnel
Starfleet enlisted personnel