Recurring Guest Characters Derrick Childrens 1 guest appearances Frank Neri 1 guest appearances Bob 1 guest appearances Young Matteo 1 guest appearances Young Frank 1 guest appearances Henri 1 guest appearances Parc Glissant Staff Member 1 guest appearances Water Park Staff Member 1 guest appearances Zuzka Balodis 1 guest appearances Joel McHale 1 guest appearances Nikolai Balodis 1 guest appearances Club Patron 1 guest appearances Latvian Bartender 1 guest appearances Brad 1 guest appearances Janet 1 guest appearances Edgar Tooby 1 guest appearances Lead Detective 1 guest appearances Nurse Jenna 1 guest appearances Baoshai 1 guest appearances Workout Prisoner 1 guest appearances ⇤ « 1 2 3 4 » ⇥