Ondřej Pavelka plays as major Martin Fišer in ZOO.
Ondřej Pavelka is the top #1 member of the cast and appears in 56 episodes.

Robert Urban plays as Fredy Valenta in ZOO.
Robert Urban is the top #2 member of the cast and appears in 48 episodes.

Eva Burešová plays as Viktorie „Viki“ Janečková in ZOO.
Eva Burešová is the top #3 member of the cast and appears in 43 episodes.

Michaela Pecháčková plays as Sidonie Anna Novotná in ZOO.
Michaela Pecháčková is the top #4 member of the cast and appears in 43 episodes.

Šimon Bilina plays as Adam „Haďák“ Hruška in ZOO.
Šimon Bilina is the top #5 member of the cast and appears in 43 episodes.

Štěpán Benoni plays as Marek „Mařenka“ Rokl in ZOO.
Štěpán Benoni is the top #6 member of the cast and appears in 43 episodes.

David Gránský plays as Albert Polák in ZOO.
David Gránský is the top #7 member of the cast and appears in 43 episodes.

Sabina Laurinová plays as Alice Novotná in ZOO.
Sabina Laurinová is the top #8 member of the cast and appears in 43 episodes.

Marek Taclík plays as Eduard Novotný in ZOO.
Marek Taclík is the top #9 member of the cast and appears in 43 episodes.

Tereza Brodská plays as Danuše Křížová in ZOO.
Tereza Brodská is the top #10 member of the cast and appears in 43 episodes.