Y - Young Dennis

Zany madcap situations inadvertently caused by Dennis

A - Tommy Anderson

B = Bradys

C - Miss Cathcart

D = Dennis Mitchell

E = Dennis Haunts a House

F = Fremont the dog

G = Gloria Henry

H = Henry and Togetherness

I - In Dennis comes, and always slams the door

J - June Wilson

K - Kearns, Jos.

L - The Lucky Piece

M = Menace, Dennis

N = Jay North

O = Out of Retirement

P - Pittman, Robert John

Q = Quiet Mr. Wilson craves but often doesn't get due to Dennis

R = Jeannie Russell

S - Sylvia Field as Martha Wilson

T = Dub Taylor

U - Urchin Dennis lol

V = Very good cookie baker, Mrs. Wilson

W - Walter, a tall friend of Dennis in a season 4 basketball episode

X - Dennis by Proxy

Y - Young Seymour

Z - San Diego Zoo

A - Anderson, Tommy

B = Bradys

C = Catherine Driscoll

D = Dennis

E - Esther Cathcart

F = Fremont

G - Dennis' Garden

H = Hank Ketcham

I - Irene Tedrow

J = Jeepers!

K - Krinkie

L - Lion costume that George brought up the rear of

M = Margaret

N - Uncle Ned

O = Otis Quigley

P - Pets Dennis sometimes brought home

Q = Quintessential grouch Mr. Wilson

R - Resting place Dennis and his friends built for Dorfman the mailman

S = Sylvia Field

T - Tommy

U = Understanding, and very sweet, Mrs. Wilson

V - Valentines Dennis was selling in July

W - Wilsons

X - on the treasure map Wilson made up for Dennis

Y - Yelling by an often upset Mr. Wilson

Z = Zzzz's Mr. Wilson tries to catch while on his hammock

A = Alice

B = Billy Booth

C = Whip Crawford

B - Billy Booth

Will do D:

D = Elinor Donahue

E = A Quiet Evening

F - Miss Cathcart's Friend

G = George Wilson

H = Henry Mitchell

I - Irene Tedrow

J = Jay North

K - Harvey Korman, guest in a few episodes

L = Lucy Elkins

M - Sgt. Mooney

N = Uncle Ned

O - Oven, Alice bakes cookies

P = Policeman Mooney

Q - Questions from Dennis

R - Dennis and the Rare Coin

S - Seymour

T - The Fishing Trip

U - Urchin (???) Dennis

V = Valentine’s Dennis sold in July

W - Wilsons

X - Dennis by Proxy

Y = Yelling by Mr. Wilson

Z = Buzz

A = Alice

B = Boys Dennis and Tommy

C - Miss Cathcart

D - Dennis and the Signpost

E - Esther Cathcart

F = Fremont

G - Gale Gordon

H = Henry Mitchell

I - Irritating Dennis

J - Jay

K - Krinkie the newspaper editor

L - Liver, Dennis didn't like it

M - Mrs. Webster

N - (The) New Neighbors

O - Out of Retirement

P - Postman Dorfman

Q = Otis Quigley

R - Robert John Pittman

S - Stewart

T - The Christmas Story

U - Understanding Martha

V - Dennis and the TV Set

W = Wilsons

X = Xmas ep where Dennis connives to get a pony.

Y - Yelling HOME to Dennis, by Wilson

Z - Buzz

A - Anderson, Tommy

B = Bradys

C - Miss Cathcart

D - Dennis

E - Edgar Buchanan (in Dennis and the Hermit)

F = Fremont

G - George

H = Hank Ketcham

I - Irritated almost always, Wlison

J = Jumpy = Mr. Wilson, rather often, around Dennis.

K = Krinkie

L - Dennis Learns to Whistle

M = Margaret

N - The New Neighbors

O = Otis Quigley

P - Paint-Up, Clean-Up Week

Q - Quota of tickets for Sgt. Mooney

R = Rest, Mr. Wilson wishes he could get more

S - Seymour

T - Miss Tarbell

U - Dennis and the Open House

V - Verna Felton, guests in the final episode

W = Wilsons

X = EXasperated Mr. Wilson

Y - Young Seymour

Z = Zeal with which Dennis operates

A - Mr. Wilson's Award

B = Boys Dennis and Tommy

C - Dennis and the Cowboy

D - Dennis The Menace

E - Esther Cathcart

F = Fremont

G - Georgianna, Wilson's niece

H = Herbert Anderson

I - Innocents in Space

J - Johnny Brady

K - Keep Off The Grass

L - The Lucky Piece

M - Malet, Arthur -- played twin dentists in a season 3 episode

N - The Man Next Door

O - Otis, first name of the grocer

P - Paper Drive

Q - Quigley, the grocer

R - Dennis and the Rare Coin

S - Seymour

T - The Fishing Trip

U - Ultra annoying, Dennis

V = Calling All Bird Lovers

W - Wade, Margaret

X - Dennis by Proxy

Y - You Go Your Way

Z - Zany madcap situations inadvertently caused by Dennis

A - Alice Pearce

B - Dennis' Birthday

C = Cat of Miss Cathcart's

D - Mr. Dorfman

E - Esther Cathcart

F - The Fishing Trip

G - Dennis Goes to Camp

H = Henry Mitchell

I - Innocents in Space

J - Joey

K - Kearns, Jos.

L - Dennis Learns to Whistle

M - Margaret

N = Nagging that Dennis feels Margaret does

O = Out of Retirement

P - Dennis' Paper Drive

Q - A Quiet Evening

R = Rascal when he wants to be, Dennis

S - Senator McDermott

T - Tommy

U - Unforgiving Mr. Wilson

V - Dennis and the TV Set

W - Wilsons

X - Dennis by Proxy

Y - Young Tommy

Z - Buzz

A = Alice Mitchell

B = Dennis Becomes a Baby Sitter

C = Canceled Hawaiian vacation of Mr. Wilson

D - Mr. Dorfman

E - Dennis and the Good Example

F - The Fishing Trip

G - George

H = Henry Mitchell

I = Irene Tedrow as Mrs. Elkins

J = Jay North

K - Kearns, Jos.

L - Dennis' Lovesick Friend

M - Margaret Wade

N - Uncle Ned

O - Otis Quigley

P - Pets Dennis sometimes brought home

Q - Quigley's Grocery

R - Resting place Dennis and his friends built for Dorfman the mailman

S - Street sign Dennis turned around, early in the series

T - Tommy

U - The Uninvited Guest

V - Valentines Dennis was selling in July

W - Wilsons

X - on the treasure map Wilson made up for Dennis

Y - Young Seymour

Z - Buzz

A = Alice

B = Boys Dennis and Tommy

C - Crush Dennis had on the Japanese girl, to open season 4

D - Dennis

E = Eager, Dennis always is for fun stuff to do

F - The Fishing Trip

G - George

H = Henry Mitchell

I - Irvin, Gregory

J = Jay North

K - Kearns, Jos.

L = Lucy Elkins

M - Miss Tarbell

N - The Man Next Door

O = Obstructs Mr. Wilson from getting more rest, Dennis

P - Pittman, Robert John

Q = Quiet rest Mr. Wilson often longs for

R - Out of Retirement

S - Silence Is Golden

T - Miss Tarbell

U - Through Thick and Thin

V - Vernon, Irene - guest on The Christmas Horse

W = Wilsons

X - "Dennis and the Saxophone"

Y = Yelling by Mr. Wilson

Z - Zaremba, John - from "Miss Cathcart's Friend"

A = Annoying pest Dennis

B = Boys, Dennis and Tommy

C - Cheryl Holdridge guests in an episode near the end of season 3.

D = Dennis

E - Eloise Wilson

F - "The Fishing Trip"

G - Gloria Henry

H = Helpful Dennis, sometimes

I = Irritating Dennis

J - John Wilson

K - Keep Off the Grass

L - "Dennis Learns to Whistle"

M - Mr. Wilson's Sister