[4] In 2006 Lonyae Miller transferred to Kaiser from Rialto high school and he was a standout on the football team, chosen as All-CIF Southern Section at running back and named the Sunkist League Offensive MVP.

Kaiser High School is home to the Catamount Pride Marching Band and Color Guard.

In 2019, the band participated in the 2019 Rose Parade with Grand Marshal Chaka Khan in the opening show.

In addition, the club engages in other theatrical activities, like improvisational workshops and field trips to see professional productions.

Shows performed at Kaiser High School include: Rodgers and Hammerstein's Cinderella, The Devil and Daniel Webster, How to Succeed in Business Without Really Trying, Harvey, Annie Get Your Gun, Picnic, Little Shop of Horrors, Arsenic and Old Lace, Into the Woods, Little Women, Once Upon A Mattress, The Mousetrap, A Christmas Story, Once On This Island, Fools, A Christmas Carol, Seussical the Musical, Twelve Angry Men, Taming of the Shrew, West Side Story, The Diviners, Hamlet, Midsummer/Jersey, Spoon River Anthology, Romeo and Juliet, Fame, Alice, Rent, Julius Caesar, Les Misérables, The Winter's Tale, Legally Blonde, Peter and the Starcatcher, Lazarus Rising, 1984, Alice in Wonderland, The Laramie Project, The Addams Family, Titus Andronicus, Twelfth Night, Little Women, Bridge to Terabithia, The Wizard of Oz, A Piece of My Heart, and The Crucible.