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A Night at the Circus is the fourth episode of the tenth season of Happy Days, and the two hundred fifteenth episode overall.
Henry Winkler (Arthur Fonzarelli)
Marion Ross (Marion Cunningham)
Anson Williams (Potsie Weber) (credit only),
Cathy Silvers (Jenny Piccalo),
Ted McGinley (Roger Phillips) (credit only),
Linda Purl (Ashley Pfister)
Tom Bosley (Howard Cunningham)
Crystal Bernard (K.C. Cunningham),
Heather O'Rourke (Heather Pfister)
Bob Basso (Dudley)
Behind the Scenes
Allusions and References