Ian Hawke

He is Dave's old boss of JETT Records from the the first three films.

He was the main villain in the Alvin and the Chipmunks and Alvin and the Chipmunks The Squeakquel. He was going to be the main villain in Alvin and the Chipmunks Chipwrecked, but this was the plot to reveal the that Zoe is the true villain later on.

He is portrayed by David Cross.

Alvin and the Chipmunks: Chipwrecked
Alvin and Ian convince Zoe to help save Dave. They then run towards the raft and escape the eruption. The Chipmunks and Chipettes perform at the International Music Awards. Ian also starts a new career as a screenwriter by selling a screenplay about Zoe's story to Hollywood, earning him his wealth back.