|“||I start but don't finish things, that's my one flaw.||”|
— Mr. Ambrose
|Bob's Burgers character|
|Occupation||Librarian/Cheerleading coach at Wagstaff School|
|Behind the scenes|
|Voiced by||Billy Eichner|
Mr. Ambrose is the librarian/cheerleading coach at Wagstaff School. He is shown to have a penchant for drama.
He has a more major role in Gene It On where he is shown to be the coach of the Wagstaff Whalers cheerleading team. Because he'd failed to get the role of drama advisor which instead went to Ms. LaBonz, he decides to inject drama into the cheerleading squad. This leads to him orchestrating the drama that takes place between Gene, Todd and the team such as telling Todd to "get dirty" leading to Todd hiring Zeke to incapacitate Gene and leaking their routine to Melvin Laird Middle School at the regional cheerleading finals.
In Teen-a Witch, Tina asks him for a book on witches for inspiration for her "Sand-witch" costume. He suggests that she not go for a stereotypical witch and that she should use witchcraft, which he practices, to win the costume contest.
- His name is not mentioned in any dialog in Topsy (his first appearance), but it's listed on the end credits, his name is eventually spoken in Gene It On.
- Practices witchcraft and was in a coven with Jackie, the crossing guard outside the school.
- Rides to school on a bike with a little dog in the front basket. (Teen-a Witch)