Lance is an arrogant and somewhat egotistical individual. He is shown to be quite unappreciative of Ash, refusing to listen to her viewpoints or let her take the spotlight. He is also portrayed as an unfaithful partner, willing to cheat on his girlfriend and happily so.
Lance is a anthropomorphic porcupine with a dark blue and azure striped shirt and a black shirt above it, along with jeans and black shoes. Like Ash, he has brown fur and brown and white quills, except his quills are longer. He is a little taller than Ash and Becky.
Lance is critical of Ash's rocking style due to him always wanting to hog the spotlight, insisted he was the lead singer while Ash was the background vocals, and he wrote all their songs, his selfish behavior holding back Ash from being the rock star she truly wants to be.
After failing to land a gig, Lance berates Ash for "getting carried away", and later on Ash showed him a flyer for a singing competition hosted by Buster Moon with the grand prize being $100,000.
Lance and Ash auditioned for the contest but Buster only accepts Ash. She decides to continue participating in the contest, and Lance calls her a sellout even though Ash insisted she wanted to win the prize money for them both.
The next day, Lance laughs with Ash at the list of cheesy pop songs Buster had given her to select from. Ash declared her desire to write her own song but Lance scoffed at the idea, and told Ash to just listen to the koala, obviously thinking Ash didn't have what it takes to write good rock music, while also showing how little he respected Ash.
Lance's ego and apparently his jealously of Ash took a turn for the worse when Ash comes home to find Lance singing Jack White's "Love Interruption" with his new girlfriend, Becky, and the two almost kiss before Ash interrupts them, questioning what is going on. Furious, Ash throws Lance and Becky out of her apartment, while Lance yells that it was her own fault for never being around anymore while Ash insisted she was in the contest for them both. After Ash slams the door on Lance and Becky, he angrily leaves with Becky.
Lance is later seen by Ash singing with Becky at the same restaurant that he and Ash tried to get a gig at at the beginning of the movie. Ash runs away upset when she sees this.
Lance and Becky see Ash on TV performing "Set It All Free" on the news. Becky turns off the TV, scoffing that Ash in her opinion wasn't all that good. Lance appeared to agree with her, but once Becky left the room, Lance quickly grabs the remote and turns the TV back on, apparently enamored by Ash and her performance, hinting that he may still have feelings for her.
“It just kind of ruins my song, you know?”
“Psh. Let's get outta here, Ash. Ash?”
–Lance, to Ash when the group acts are selected and he's not in the show
“Look, if you wanna win that money, just do what the koala says.”
–Lance, advising Ash on how to win the prize money
“Whoa, whoa, I'm just saying; not everyone can write songs, okay? I know I make it look easy, babe... but it's not.”
–Lance, in doubt that Ash can write her own song
“Hey, what did you expect? You're never around anymore.”