Franz Neckvein is an NPC mouse Toon. He lives and works at The Punch Line Gym on Punchline Place in Toontown Central. There are no mainline ToonTasks associated with Franz; however, by random chance, Flippy may send a Toon to him to explain the differences between Toon-Up and Sound before choosing a gag.
Franz Neckvein is also a four-star Drop SOS Toon. When called in battle, Franz will use Safes, which causes 100 damage to all Cogs. If there is any lured Cog, the Safe will miss it. Given that no other Drop gag is used alongside him, his Safes will hold perfect accuracy on any Cog below level 10. This accuracy is maintained on level 10+ Cogs, as long as the Toon summoning him has Drop gags.
- His name is a pun off of "neck vein".